I like "Almost There," "A Whole New World," "Belle," (Belle does sing part of it, so I think that counts), and "Colors of the Wind" (even though I very much dislike the movie it was in).
I'm totally behind a plus-sized Disney princess (heck, a plus-sized Disney heroine would even be nice. Who ISN'T stereotypical). And as of the finale of "Legend of Korra" (spoiler alert), Nickelodeon has made a lesbian couple, so I don't really see why Disney can't make a lesbian heroine (what about people who get offended? They need to get over it. Disney has shown characters die on film, in very gruesome ways sometimes. People can handle them having a female character who is attracted to women).
To the complaint about people demanding plus-sized princesses or princesses of certain nationalities or races, just stop. Representation matters. End of story. You know why people demand (or, more accurately, suggest) that? Because in media, for the most part, even nowadays, female characters are mostly white, young (little girls and teens-under 35), straight, etc. I don't exactly think people are in the wrong for questioning that...