My favorite Disney soundtrack is the Hunchback of Notre Dame, and that's a big reason why it's my favorite Disney movie. It's so dark and dramatic, both the scores (I could listen to Paris is Burning and Sanctuary FOREVER <333) and the songs (Out There, Bells of Notre Dame, and my number one favorite Disney song Hellfire). I've got a soft spot for villain songs in general- Hellfire, Friends on the Other Side, Mother Knows Best, Mad Madame Mim, Poor Unfortunate Souls, Be Prepared, World's Greatest Criminal Mind, all that jazz.
Besides Hunchback and villain songs, my favorites are Zipadeedoodah, Everybody's Got a Laughing Place, The Headless Horseman, Twas Brillig, Golden Afternoon, Someone's Waiting For You, Once Upon a Time in NYC, Under the Sea, Friend Like Me, the Goofy Movie soundtrack in general, I Won't Say I'm in Love, Son of Man, Hawaiian Roller Coaster Ride, Ma Belle Evangeline, and When Will My Life Begin?
... I have a lot of favorites XD