Top 10 list! *note* subject to have more or less than 10 titles at anytime, 10 is just a suggestion.

Top 10 anime Rating
Cromartie High School (TV) Excellent
Clearly the Monty Python of anime, it feels like a counterpart to its also amazing manga series.
Gurren Lagann (TV) Masterpiece
Is this the coolest anime or what? It's so cool, it's difficult to describe in words, and it does it all so well! I marathoned all but the first 5 eps in 1 day, I couldn't get enough! There were at least 4 scenes of crowning awesome that would've been suitable endings for any other anime, and it kept getting more and more awesome! Best action anime EVER!
INTERSTELLA 5555: The 5tory of the 5ecret 5tar 5ystem (movie) Masterpiece
No words, yet conveys a clearer story than some other (shall remain nameless) anime. Don't always need a novels worth of monologue to convey a point.
Key the Metal Idol (OAV) Very good
Great sci-fi series made of pure win. I will edit this later to make it sound less stupid.
Metropolis (movie) Masterpiece
First anime/manga intro to Osamu Tezuka, still my favorite anime movie! I like Rock, my favorite character in all the Tezuka star-system!
Mushi-Shi (TV) Excellent
Episodic in nature, yet each episode is unique in story. Perfect sound and animation accompany it, simply astonishing.
Noein - to your other self (TV) Excellent
Outlaw Star (TV) Masterpiece
Princess Tutu (TV) Masterpiece
Favorite non-debatable as anime series ever. And I don't even like magical girls.
Robotech (U.S. TV) Excellent
I first saw this in...2005ish? Great things endure for a reason.