Pretty much everything but Pocahontas has been listed, and even that had some good music in it. I think we can conclude the Renaissance had kickass music in general.
For best though, I'd have to go with Hercules or Tarzan, personally. But not by a large margin.
Agree with
>>98842897 about Hercules
https://www.youtube.com/watch?v=4qTRvO1IbvIAnd for Tarzan, the soundtrack was sublimely woven into the narrative, especially when comparing and contrasting the human and gorilla worlds.
For instance, the opening song sets up the rest of the movie perfectly, highlighting the similarities between the Gorilla and Human families, even as each is torn asunder.
https://www.youtube.com/watch?v=ZFL0REtkocYAnother song is used to emphasize the struggles young Tarzan had to overcome to learn live as a Gorilla.
https://www.youtube.com/watch?v=TCkA6F1nfckAnd then yet another song is used to show Tarzan doing the exact opposite, learning live as a human.
https://www.youtube.com/watch?v=zc3MnoSS5HwIt doesn't hurt that Phil Collins has the voice of an Angel.