For the most part I love anything that Disney and Pixar throws out. The animation is stunning. :)
As for Disney's oldie animated movies, my favorites are The Aristocats, The Fox And The Hound, Oliver And Company, and The Lady And The Tramp.
I personally think that Mary Poppins is one of the best movies I have ever seen in my life and will never get tired of watching it. Both the movie and the books are amazing.
I think the live action and the animation currently (from 2000 and on) coming from Disney are so-so. You kind of have to pick and choose. There are original storylines along with lame ones, and great acting along with iffy acting.
BTW, I think Bolt looks like video game quality and would probably make for a nice video game. It looks cheesy. That being said, I wouldn't mind seeing it because it looks like it'll have a lot of humor. The hamster in a ball is kyoot. =P