I have to break it down into princesses, villains, and non-villains.
Princess. I love the story arc of Tiana in The Princess and the Frog, but I think that's because who doesn't love a good rags to riches story. I was thinking Aurora, but that's probably because Sleeping Beauty is in my top 5 films of All-Time. So I'm gonna stick with Tiana on this.
Favorite villain, hands down, without a question, Frodo. I know many people don't like Hunchback and that's fine, but I view him as just pure evil and see him as the devil reincarnated. Plus, I think Hunchback is an underrated Disney film.
Finally, I love Goofy. Maybe it's because I'm 6ft 4 and tend towards the clumsy and always find the awkward in every situation that I am in.
Ask me to pick just one and I go with the Chesire Cat. Just saying.