Good choice! My favorite song on that one is Hawaiian Roller Coaster Ride, and I feel like the subtle, sweet score is refreshing.
Again, I doubt one can determinate an absolute best.
Besides the aforementioned Hunchback, one could mention other Menken works like Beauty & the Beast, older classics like Pinocchio and Bambi.
I also like the Mancini score from Mouse Detective and its three songs are good. This is more of an honorific mention, and it’s not obviously among the very best.
But one of my personal favourites will always be The Rescuers down Under. The score is MAGNIFICENT, and even if you don’t like the film, you should give it a try. It has so many epic leitmotifs.
I really like the Rescuers Down Under, but I can’t remember its music very well. I think the songs on the Great Mouse Detective are good, and funny. They have very clever lyrics. I have to say my personal favorites are usually from the moves I like best. I really like Snow White, Beauty and the Beast and Hunchback.
Oh yes, I’m not a fan of Katzenburg either. Another little scene almost cut was the Three Caballeros song, because it was too “schizophrenic and not Disney”. Ward Kimball had already animated it, and his sequence director told him to change it or it would be cut. Kimball said (warning for swearing): [spoil]Shove it up your a**[/spoil]. The sequence director reluctantly showed it to Walt, who surprisingly liked it. And that scene is often refereed to as Kimball’s masterpiece, because it’s one of the best examples of character animation in any Disney film. (Which is ironic, because the animation as a whole is pretty terrible in The Three Caballeros)
Lilo and Stitch is actually one of my favorites as well. He Mele No Lilo is one of my favorite Disney songs ever, and Alan Silvestri is a great composer in general.