I actually rewatched some of the Disney movies that impressed me in the past when I was a kid, and I turned out to be unimpressed with The Lion King, Cinderella, The Fox and the Hound, plus Snow White and the Seven Dwarves. I didn't know what I was thinking, but then again, when you're a kid, your inexperience makes it so that you have lower standards. I, however, still thought that The Little Mermaid is good nowadays. I have yet to rewatch Beauty and the Beast among others.
I would say back then, Disney had the most memorable soundtrack, but today, Disney Pixar is overall a lot better, and it's not because of the graphics, but overall storyline, character development, dialogue, etc. I LOVE Disney Pixar.