Mary Poppins. Practically perfect in every way. It used to be The Little Mermaid, until my daughter turned 2 and decided she wanted to watch it 3 times a day.
It was Snow White and the Seven Dwarves. My dad was a Disney CM at the time, and they had a theater showing for CMs and their families. It's one of my earliest memories.
Which Disney movie have you seen more times than any other?