Pre-Renaissance: Lady and the Tramp Renaissance: Tarzan Pixar: Well, not including the Toy Story movies, WALL-E.
I also believe that Cars 2 was a vastly superior film than Brave, and I was one of those people that initially assumed that Cars 2 would be a crappy cashcow. But it does what it advertised way better than Brave. The storyline and production history of Brave was really troubled and practically a lost cause.
Disney: Hunchback of Notre Dame Pixar: Toy Story/The Incredibles
"Honey, where's mah supahsuit?" "Why d'you need ta know?" "There's just a little somethin' goin' on outside I wanna check out..." "Oh no you don't! We have been planning this dinner for ten years, Lucius! Ten years!" "Honey, this is for the greater good!" "I'm your wife! I'm the greatest good you ever gonna get!" "Where'd you put mah supersuit, woman?!"
Before I answer, I just have to say.. really? You think that Disney, Disney movies are under-appreciated? As opposed to which other company?
My favourite disney film (and I would say this is an under-appreciated disney film) is Basil the Great Mouse Detective Love everything about it My favourite Pixar film would be... Toy Story (can't really go wrong there!) or Bug's Life
My top favorite Disney movie is: Wreck-it-Ralph, Meet The Robinsons, and Treasure Planet, Nightmare Before Christmas, Beauty and the Beast, Hercules. The other Disney movies I also like is: Tarzan, Atlantis: The Last Empire, James and the giant Peach, Dinosaur, Goofy Movie, and Tangled.
I don't know any Pixar movies that I may like
I usually forget some of the Disney movies that comes out. Not used to knowing Pixar movies that much though.
Disney for me would probably be either Aladdin or The Lion King. I think Lion King has more likeable characters, and everybody loves a story about Africa's iconic animals but Aladdin is very entertaining and probably the funniest of them, even if just because of Genie and that smartass parrot I really wanted to see Wreck It Ralph and I wouldn't be surprised if that ends up becoming my top favourite.
Pixar I would say has to be Finding Nemo. I could be biased because I love the colourful world of the coral reefs and their inhabitants, so much that when the movie was released I could name most of the fish-types featured in the film. It was the most visually beautiful movie they made and I also loved how it featured Sydney in there too (since Australia is so often forgotten in film, especially animated ones) and that it was just a very lovely and heartwarming story