This list only includes anime I'd consider to be mostly mature. In other words, anime with some type of story or purpose other than toilet humor or fanservice.

Anime (Sophisticated) Rating
009 Re:Cyborg (movie) Masterpiece
Aquarian Age - Sign for Evolution (TV) Masterpiece
Armitage III (OAV) Masterpiece
Baccano! (TV) Masterpiece
Banner of the Stars (TV) Masterpiece
Banner of the Stars II (TV) Masterpiece
BECK: Mongolian Chop Squad (TV) Masterpiece
Blue Gender (TV) Masterpiece
Bunny Drop (TV) Masterpiece
Cowboy Bebop: The Movie Masterpiece
Crest of the Stars (TV) Masterpiece
Destiny of the Shrine Maiden (TV) Masterpiece
Ergo Proxy (TV) Masterpiece
(The) Garden of Sinners (movie series) Masterpiece
Ghost in the Shell: Stand Alone Complex (TV) Masterpiece
Ghost in the Shell: Stand Alone Complex 2nd GIG (TV) Masterpiece
Ghost in the Shell: Stand Alone Complex: Solid State Society (movie) Masterpiece
Gunslinger Girl (TV) Masterpiece
.hack//Liminality (OAV) Masterpiece
Haibane Renmei (TV) Masterpiece
Heaven's Memo Pad (TV) Masterpiece
Higurashi no Naku Koroni Kai (TV) Masterpiece
I''s Pure (OAV) Masterpiece
Infinite Ryvius (TV) Masterpiece
Interlude (OAV) Masterpiece
Kanon (TV 2/2006) Masterpiece
Kemonozume (TV) Masterpiece
Kimagure Orange Road: Summer's Beginning (movie) Masterpiece
Kimagure Orange Road: The Movie Masterpiece
Koi Kaze (TV) Masterpiece
Kurenai (TV) Masterpiece
Kurokami The Animation (TV) Masterpiece
Legend of the Galactic Heroes (OAV) Masterpiece
Maison Ikkoku (TV) Masterpiece
Mobile Suit Gundam UC (OAV) Masterpiece
Monster (TV) Masterpiece
Moribito - Guardian of the Spirit (TV) Masterpiece
Myself; Yourself (TV) Masterpiece
Nausicaä of the Valley of the Wind (movie) Masterpiece
Pale Cocoon (OAV) Masterpiece
Paprika (movie) Masterpiece
Patlabor: The Movie Masterpiece
Perfect Blue (movie) Masterpiece
(The) Place Promised in Our Early Days (movie) Masterpiece
Planetes (TV) Masterpiece
Princess Mononoke (movie) Masterpiece
Read or Die (OAV) Masterpiece
Real Drive (TV) Masterpiece
REC (TV) Masterpiece
Redline (movie) Masterpiece
Rideback (TV) Masterpiece
Rumbling Hearts (TV) Masterpiece
Star Blazers 2199 (TV) Masterpiece
Steins;Gate (TV) Masterpiece
Steins;Gate Fuka Ryōiki no Déjà vu (movie) Masterpiece
Summer Wars (movie) Masterpiece
(The) Super Dimension Fortress Macross: Do You Remember Love? (movie) Masterpiece
Sword of the Stranger (movie) Masterpiece
Time of Eve (ONA) Masterpiece
Time of Eve (movie) Masterpiece
Tokyo Magnitude 8.0 (TV) Masterpiece
Toshokan Sensō: Kakumei no Tsubasa (movie) Masterpiece
(The) Vision of Escaflowne (TV) Masterpiece
Welcome to the NHK (TV) Masterpiece
When They Cry - Higurashi (TV) Masterpiece
Whisper of the Heart (movie) Masterpiece
3x3 Eyes Seima Densetsu (OAV) Excellent
Aldnoah.Zero (TV) Excellent
Angel Beats! (TV) Excellent
anohana: The Flower We Saw That Day (TV) Excellent
Another (TV) Excellent
Appleseed (movie) Excellent
Appleseed: Ex Machina (movie) Excellent
Aquatic Language (special) Excellent
Armitage III: Poly-Matrix (movie) Excellent
Armor Hunter Mellowlink (OAV) Excellent
Armored Trooper Votoms (TV) Excellent
Armored Trooper Votoms: The Last Red Shoulder (OAV) Excellent
Arpeggio of Blue Steel (TV) Excellent
Aruvu Rezuru - Kikai Jikake no Yōsei-tachi (movie) Excellent
Azumanga Daioh (TV) Excellent
Bakemonogatari (TV) Excellent
Banner of the Stars III (OAV) Excellent
Birdy the Mighty Decode:02 (TV) Excellent
Birdy the Mighty: Decode (TV) Excellent
Black Jack (OAV) Excellent
Black Jack Final (OAV) Excellent
Black Jack The Movie Excellent
Black Lagoon (TV) Excellent
Black Lagoon: Roberta's Blood Trail (OAV) Excellent
Black Lagoon: The Second Barrage (TV) Excellent
Blade of the Phantom Master (movie) Excellent
Bubblegum Crisis: Tokyo 2040 (TV) Excellent
Buki yo Saraba (movie) Excellent
Chobits (TV) Excellent
Chrome Shelled Regios (TV) Excellent
Clannad (movie) Excellent
Code Geass: Lelouch of the Rebellion (TV) Excellent
Code Geass: Lelouch of the Rebellion R2 (TV) Excellent
Cowboy Bebop (TV) Excellent
Dead Girls (OAV) Excellent
Death Billiards (movie) Excellent
Death Note (TV) Excellent
Dennō Coil (TV) Excellent
Denpa teki na Kanojo (OAV) Excellent
(The) Disappearance of Haruhi Suzumiya (movie) Excellent
Durarara!! (TV) Excellent
Eden of the East (TV) Excellent
ef: a tale of melodies (TV) Excellent
ef: a tale of memories (TV) Excellent
Evangelion: 2.0 You Can (Not) Advance (movie) Excellent
Evangelion: 3.0 You Can (Not) Redo (movie) Excellent
Fate/stay night (TV) Excellent
Fate/stay night: Unlimited Blade Works (movie) Excellent
Fate/Zero (TV) Excellent
Fate/Zero (TV 2) Excellent
Figure 17 (TV) Excellent
Fire Tripper (OAV) Excellent
Five Numbers! (OAV) Excellent
(The) Five Star Stories (movie) Excellent
Freedom (OAV) Excellent
Full Metal Panic! (TV) Excellent
Full Metal Panic! The Second Raid (TV) Excellent
(The) Future Diary (TV) Excellent
Galaxy Express 999 (movie) Excellent
Gankutsuou: The Count of Monte Cristo (TV) Excellent
Ghost Hound (TV) Excellent
Ghost Hunt (TV) Excellent
Ghost in the Shell (movie) Excellent
Ghost in the Shell 2: Innocence (movie) Excellent
(The) Girl Who Leapt Through Time (movie) Excellent
Green Legend Ran (OAV) Excellent
GTO: Great Teacher Onizuka (TV) Excellent
Gungrave (TV) Excellent
Gunslinger Girl: Il Teatrino (TV) Excellent
Gunslinger Girl: Il Teatrino (OAV) Excellent
.hack//Quantum (OAV) Excellent
.hack//SIGN (TV) Excellent
Hanasaku Iroha - Blossoms for Tomorrow (TV) Excellent
Hell Girl: Three Vessels (TV) Excellent
Hell Girl: Two Mirrors (TV) Excellent
Hellsing Ultimate (OAV) Excellent
Heroic Age (TV) Excellent
High School of the Dead (TV) Excellent
Higurashi no Naku Koro ni Rei (OAV) Excellent
I''s (OAV) Excellent
Innocent Venus (TV) Excellent
Inu X Boku Secret Service (TV) Excellent
Iria - Zeiram the Animation (OAV) Excellent
Jormungand (TV) Excellent
Jormungand Perfect Order (TV) Excellent
Kara no Kyoukai: Mirai Fukuin (movie) Excellent
Karas (OAV) Excellent
Kimagure Orange Road (TV) Excellent
Kimi ga Nozomu Eien ~Next Season~ (OAV) Excellent
Kimi ni Todoke - From Me to You (TV) Excellent
Kimi ni Todoke 2nd Season (TV) Excellent
King of Thorn (movie) Excellent
Kobato. (TV) Excellent
Kurau: Phantom Memory (TV) Excellent
Kure-nai (OAV) Excellent
Last Exile (TV) Excellent
(The) Legend of Black Heaven (TV) Excellent
Legend of the Galactic Heroes: A Hundred Billion Stars, A Hundred Billion Lights (OAV) Excellent
Legend of the Galactic Heroes: Golden Wings (OAV) Excellent
Legend of the Galactic Heroes: My Conquest is the Sea of Stars (movie) Excellent
Legend of the Galactic Heroes: Overture to a New War (movie) Excellent
Legend of the Galactic Heroes: Spiral Labyrinth (OAV) Excellent
Library War (TV) Excellent
Lost Chapter of the Stars - Birth (special) Excellent
Lunar Legend Tsukihime (TV) Excellent
Lupin III: Chi no Kokuin Eien no Mermaid (special) Excellent
Macross Frontier (TV) Excellent
Macross Frontier: Itsuwari no Utahime (movie) Excellent
Macross Frontier: Sayonara no Tsubasa (movie) Excellent
Macross Plus Movie Edition Excellent
Madlax (TV) Excellent
Maison Ikkoku: Kanketsuhen (movie) Excellent
MAOYU (TV) Excellent
Mardock Scramble: The First Compression (movie) Excellent
Master Keaton (TV) Excellent
Master Keaton (OAV) Excellent
Megazone 23 (OAV) Excellent
Megazone 23 Part II (OAV) Excellent
Mermaid Forest (TV) Excellent
Mermaid's Scar (OAV) Excellent
Mobile Suit Gundam - The Movie Trilogy Excellent
Mobile Suit Gundam 00 (TV) Excellent
Mobile Suit Gundam 0083: Stardust Memory (OAV) Excellent
Mobile Suit Gundam Seed (TV) Excellent
Mobile Suit Gundam Wing (TV) Excellent
Mobile Suit Gundam Wing: Endless Waltz (OAV) Excellent
Mobile Suit Gundam: Char's Counterattack (movie) Excellent
Mobile Suit Gundam: The 08th MS Team (OAV) Excellent
Mobile Suit Zeta Gundam (TV) Excellent
Monogatari Series Second Season (TV) Excellent
Natsu no Arashi! (TV) Excellent
Natsu no Arashi! Akinai-chū (TV) Excellent
Nekomonogatari (Black) (TV) Excellent
Nerawareta Gakuen (movie) Excellent
Niji-Iro Hotaru ~Eien no Natsu Yasumi~ (movie) Excellent
Nisemonogatari (TV) Excellent
Noein - to your other self (TV) Excellent
Noir (TV) Excellent
Origin ~Spirits of the Past~ (movie) Excellent
Outlaw Star (TV) Excellent
Parasite Dolls (OAV) Excellent
Patema Inverted (movie) Excellent
Patlabor 2: The Movie Excellent
Patlabor the Mobile Police (TV) Excellent
Patlabor The Mobile Police (OAV 1/1988) Excellent
(Le) Portrait de Petite Cossette (OAV) Excellent
Psycho-Pass (TV) Excellent
Puella Magi Madoka Magica (TV) Excellent
Puella Magi Madoka Magica The Movie Part 3: Rebellion Excellent
R.O.D -The TV- Excellent
RahXephon (TV) Excellent
Red Garden (TV) Excellent
Requiem from the Darkness (TV) Excellent
Riding Bean (OAV) Excellent
Rozen Maiden – Zurückspulen (TV) Excellent
Rurouni Kenshin: Trust & Betrayal (OAV) Excellent
Ryoko's Case File (TV) Excellent
Samurai 7 (TV) Excellent
Samurai Champloo (TV) Excellent
Scrapped Princess (TV) Excellent
Serial Experiments Lain (TV) Excellent
Shiki (TV) Excellent
Silent Möbius (movie) Excellent
Silent Möbius 2 (movie) Excellent
Sol Bianca: The Legacy (OAV) Excellent
Sola (TV) Excellent
Solty Rei (TV) Excellent
Speed Grapher (TV) Excellent
Spice and Wolf (TV) Excellent
Spice and Wolf II (TV) Excellent
Spriggan (movie) Excellent
Starship Operators (TV) Excellent
Steamboy (movie) Excellent
Stratos 4 (TV) Excellent
Stratos 4 (OAV) Excellent
Stratos 4 Advance (OAV) Excellent
Stratos 4 Advance Kanketsuhen (OAV) Excellent
(The) Super Dimension Fortress Macross (TV) Excellent
Sword Art Online (TV) Excellent
They Were 11 (movie) Excellent
(The) Third: The Girl with the Blue Eye (TV) Excellent
This Ugly Yet Beautiful World (TV) Excellent
To (OAV) Excellent
Tokyo Majin (TV) Excellent
Tokyo Majin Gakuen Kenpucho: Tou 2nd Act (TV) Excellent
Towanoquon (movie series) Excellent
True Tears (TV) Excellent
Tsukumo (movie) Excellent
(The) Twelve Kingdoms (TV) Excellent
Umineko - When They Cry (TV) Excellent
Urusei Yatsura: Beautiful Dreamer (movie) Excellent
Utawarerumono (TV) Excellent
White Album (TV) Excellent
White Album 2 (TV) Excellent
Witch Hunter Robin (TV) Excellent
X (TV) Excellent
xxxHOLiC the Movie: A Midsummer Night's Dream Excellent
xxxHOLiC: Kei (TV) Excellent
Yukikaze (OAV) Excellent
3x3 Eyes (OAV) Very good
Adieu Galaxy Express 999 (movie) Very good
Akira (movie) Very good
Amnesia (TV) Very good
(The) Animatrix (OAV) Very good
anohana: The Flower We Saw That Day (movie) Very good
Armitage: Dual-Matrix (movie) Very good
Armored Trooper Votoms Case;Irvine (OAV) Very good
Armored Trooper Votoms: Big Battle (OAV) Very good
Armored Trooper Votoms: Pailsen Files (OAV) Very good
Armored Trooper Votoms: Phantom Arc (OAV) Very good
Armored Trooper Votoms: Red Shoulder Document - Roots of Treachery (OAV) Very good
Attack on Titan (TV) Very good
Ayakashi Ayashi: Ayashi Divine Comedy (OAV) Very good
Big Wars (movie) Very good
Birdy the Mighty (OAV) Very good
Birdy the Mighty Decode: The Cipher (OAV) Very good
Black Butler (TV) Very good
Black Rock Shooter (OAV) Very good
Blood+ (TV) Very good
Bokura ga Ita (TV) Very good
Boogiepop Phantom (TV) Very good
Broken Blade (movie series) Very good
Cat Shit One: The Animated Series (ONA) Very good
(Le) Chevalier D'Eon (TV) Very good
Clannad (TV) Very good
Clannad After Story (TV) Very good
Claymore (TV) Very good
Dallos (OAV) Very good
Dante's Inferno: An Animated Epic (OAV) Very good
Darker than Black (TV) Very good
Darker than Black - Kuro no Keiyakusha: Gaiden (OAV) Very good
Darker than Black: Gemini of the Meteor (TV) Very good
Dogs: Bullets & Carnage (OAV) Very good
Eden of the East: Paradise Lost (movie) Very good
Eden of the East: The King of Eden (movie) Very good
Evangelion: 1.0 You Are (Not) Alone (movie) Very good
Fafner (TV) Very good
Fafner: Heaven and Earth (movie) Very good
First Squad - The Moment Of Truth (OAV) Very good
From the New World (TV) Very good
Ga-Rei-Zero (TV) Very good
Galilei Donna (TV) Very good
Gambo (movie) Very good
Gasaraki (TV) Very good
Genshiken (TV) Very good
Genshiken (OAV) Very good
Genshiken 2 (TV) Very good
Ghost Slayers Ayashi (TV) Very good
(The) Glass Rabbit (movie) Very good
Gosick (TV) Very good
Gundress (movie) Very good
Gunsmith Cats (OAV) Very good
Hanasaku Iroha: Home Sweet Home (movie) Very good
Hell Girl (TV) Very good
Hellsing (TV) Very good
Honey and Clover (TV) Very good
Hyōka (TV) Very good
K-ON! (TV) Very good
Kamisama Dolls (TV) Very good
Katanagatari (TV) Very good
Kill Bill Chapter 3: The Origin of O-Ren (movie segment) Very good
Kimagure Orange Road (OAV) Very good
Kino no Tabi: The Beautiful World (movie) Very good
Kino's Journey (TV) Very good
Kino's Travels: Life Goes On (movie) Very good
Kodocha (TV) Very good
Kurogane Communication (TV) Very good
Last Exile: Fam, The Silver Wing (TV) Very good
(The) Laughing Target (OAV) Very good
A Letter to Momo (movie) Very good
Log Horizon (TV) Very good
Loups=Garous - The Motion Picture Very good
Lupin III: Return of Pycal (OAV) Very good
Macross Plus (OAV) Very good
Macross Zero (OAV) Very good
Maetel Legend (OAV) Very good
Mardock Scramble: The Second Combustion (movie) Very good
Mardock Scramble: The Third Exhaust (movie) Very good
(The) Melancholy of Haruhi Suzumiya (TV) Very good
(The) Melancholy of Haruhi Suzumiya (TV 2009 renewal) Very good
Mermaid Forest (OAV) Very good
Mobile Suit Gundam (TV) Very good
Mobile Suit Gundam 00 Second Season (TV) Very good
Mobile Suit Gundam 00 the Movie: A Wakening of the Trailblazer Very good
Mobile Suit Gundam F91 (movie) Very good
Mobile Suit Gundam MS IGLOO 2: Jūryoku Sensen (OAV) Very good
Mobile Suit Gundam MS IGLOO: Apocalypse 0079 (OAV) Very good
Mobile Suit Gundam Seed C.E.73: Stargazer (ONA) Very good
Mobile Suit Gundam Seed Destiny (TV) Very good
Mobile Suit Gundam Seed Destiny Final Plus: The Chosen Future (OAV) Very good
Mobile Suit Gundam Wing: Endless Waltz Special Edition (movie) Very good
Mushi-Shi (TV) Very good
Mushishi Tokubetsu-hen: Hihamukage (special) Very good
Mushishi: The Next Chapter (TV) Very good
Ninja Scroll (movie) Very good
No. 6 (TV) Very good
Patlabor The Mobile Police: The New Files (OAV 2/1990) Very good
Phantom - The Animation (OAV) Very good
(The) Princess and the Pilot (movie) Very good
Puella Magi Madoka Magica the Movie Part 1: Beginnings Very good
Puella Magi Madoka Magica the Movie Part 2: Eternal Very good
RahXephon: Pluralitas Concentio (movie) Very good
Ray (TV) Very good
Red Data Girl (TV) Very good
RIN - Daughters of Mnemosyne (TV) Very good
Robotech II: The Sentinels (U.S. movie) Very good
Robotics;Notes (TV) Very good
(The) Rose of Versailles (TV) Very good
Short Peace (movie) Very good
Sōkō Kihei Votoms: Koei Futatabi (OAV) Very good
Space Symphony Maetel ~Ginga Tetsudō 999 Gaiden~ (TV) Very good
Sunday Without God (TV) Very good
Toward the Terra (TV) Very good
Tsubasa Tokyo Revelations (OAV) Very good
Tsubasa: Spring Thunder (OAV) Very good
Votoms Finder (OAV) Very good
Wolf Children (movie) Very good
Wolf's Rain (TV) Very good
Xam'd: Lost Memories (ONA) Very good
Xenosaga: The Animation (TV) Very good
xxxHOLiC (TV) Very good
You're Under Arrest (OAV) Very good
5 Centimeters per Second (movie) Good
Angel Heart (TV) Good
Appleseed (OAV) Good
Appleseed XIII (TV) Good
Argento Soma (TV) Good
Armored Trooper Votoms: Pailsen Files (movie) Good
Basilisk (TV) Good
Battle Angel (OAV) Good
(The) Big O (TV) Good
Black Blood Brothers (TV) Good
Black Bullet (TV) Good
Black Butler II (TV) Good
Black Magic M-66 (OAV) Good
Blade of the Immortal (TV) Good
Blood-C (TV) Good
Blood: The Last Vampire (movie) Good
Bounty Dog (OAV) Good
Brain Powered (TV) Good
Btooom! (TV) Good
Bus Gamer (TV) Good
Children Who Chase Lost Voices (movie) Good
Cyber City Oedo 808 (OAV) Good
Dantalian no Shoka: Ibara-Hime (OAV) Good
Deadman Wonderland (TV) Good
Flag (ONA) Good
Fractale (TV) Good
(The) Galaxy Railways (TV) Good
(The) Galaxy Railways: A Letter from the Abandoned Planet (OAV) Good
Ghost in the Shell: Stand Alone Complex - Individual Eleven (OAV) Good
Ghost in the Shell: Stand Alone Complex - The Laughing Man (OAV) Good
Ginga Tetsudo Monogatari: Eien e no Bunkiten (TV) Good
Glass Fleet (TV) Good
Good Morning Althea (OAV) Good
Gunbuster (OAV) Good
Hakuōki (TV) Good
Hakuōki: Record of the Jade Blood (TV) Good
Harlock Saga (OAV) Good
Hi-no-youjin (movie) Good
His and Her Circumstances (TV) Good
Honey and Clover II (TV) Good
Intrigue in the Bakumatsu - Irohanihoheto (TV) Good
Kimi no Iru Machi (TV) Good
Kurozuka (TV) Good
(The) Legend of the Legendary Heroes (TV) Good
Megazone 23 Part III (OAV) Good
Mobile Suit Gundam 0080: War in the Pocket (OAV) Good
Mobile Suit Victory Gundam (TV) Good
Moonlight Mile (TV) Good
Moonlight Mile 2nd Season - Touch Down (TV) Good
Muv-Luv Alternative: Total Eclipse (TV) Good
(The) Mystic Archives of Dantalian (TV) Good
Natsuyuki Rendezvous (TV) Good
NieA_7 (TV) Good
Occult Academy (TV) Good
Paranoia Agent (TV) Good
Persona 4: The Animation (TV) Good
Phantom ~Requiem for the Phantom~ (TV) Good
Psychic Detective Yakumo (TV) Good
Pumpkin Scissors (TV) Good
Rurouni Kenshin: New Kyoto Arc (OAV) Good
Sankarea: Undying Love (TV) Good
Silent Möbius (TV) Good
(The) Skull Man (TV) Good
(The) Sky Crawlers (movie) Good
Someday's Dreamers (TV) Good
Stellvia (TV) Good
Strain: Strategic Armored Infantry (TV) Good
Super Dimensional Fortress Macross II: The Movie (OAV) Good
To Heart (TV) Good
Tsubasa: RESERVoir CHRoNiCLE (TV) Good
Umi no Yami, Tsuki no Kage (OAV) Good
Vampire Knight Guilty (TV) Good
Vexille - 2077 Isolation of Japan (movie) Good
Viper's Creed (TV) Good
xxxHOLiC: Rō (OAV) Good
xxxHOLiC: Shunmuki (OAV) Good
You're Under Arrest (TV) Good
You're Under Arrest Second Season (TV) Good
You're Under Arrest: Full Throttle (TV) Good
You're Under Arrest: No Mercy! (OAV) Good
You're Under Arrest: The Movie Good
Aria the Animation (TV) Decent
Black Jack: Child from the Sky (OAV) Decent
Blue Gender: The Warrior (movie) Decent
Blue Remains (movie) Decent
(The) Book of Bantorra (TV) Decent
Cannon Fodder (movie) Decent
E.Y.E.S. of Mars (movie) Decent
Geneshaft (TV) Decent
Highlander: The Search for Vengeance (movie) Decent
Jyu-Oh-Sei (TV) Decent
Magnetic Rose (movie) Decent
Memories (movie) Decent
Mobile Suit Gundam: The 08th MS Team, Miller's Report (movie) Decent
Night Raid 1931 (TV) Decent
Nighthead Genesis (TV) Decent
Patlabor WXIII (movie 3) Decent
Penguindrum (TV) Decent
Planzet (movie) Decent
Sol Bianca (OAV) Decent
Stink Bomb (movie) Decent
Texhnolyze (TV) Decent
Vampire Knight (TV) Decent
Voices of a Distant Star (OAV) Decent
xxxHOLiC: Rō Adayume (OAV) Decent
Air (movie) So-so
Now and Then, Here and There (TV) So-so
Arjuna (TV) Not really good
Armored Trooper Votoms: The Heretic Saint (OAV) Not really good
Asura (movie) Not really good
Casshern Sins (TV) Not really good
Metropolis (movie) Not really good
Tori no Uta (OAV) Not really good
(The) Wings of Rean (ONA) Not really good
Wolf's Rain (OAV) Weak
Jin-Roh - The Wolf Brigade (movie) Bad