Not the best anime, but my favourites. In alphabetical order.

Top 10 Favourite Anime Rating
Whisper of the Heart (movie) Masterpiece
Toradora! (TV) Excellent
She, The Ultimate Weapon (TV) Masterpiece
Princess Mononoke (movie) Masterpiece
Nodame Cantabile (TV) Excellent
(The) Melancholy of Haruhi Suzumiya (TV) Excellent
Gunslinger Girl (TV) Excellent
Ghost in the Shell: Stand Alone Complex (TV) Excellent
Elfen Lied (TV) Very good
Chobits (TV) Excellent (dub & sub)