I liked Fox and the Hound, Sleeping Beauty... Beauty and the Beast... and a few other classic Disney movies--Fantasia =<3. But Fox and the Hound and Fantasia are my favorites. I like the movies they come out with now, too. Frog Princess was enjoyable and I like the Pirates of the Caribbean, and Cars, and a few other recent movies as well. I actually just miss the classic 2D animation style. Now, with 2D animation it's mostly bad quality. Everyone doesn't want to spend time on each frame.
3D animation is taking over, and I love 3D animation, but I wish it wouldn't push 2D out all the way.