Ugh I'll cheat a little. I'm going with Peter Pan and Spaceship Earth.
Peter Pan was the first ride I rode on my first trip to WDW plus it is my favorite Disney movie.
Spaceship Earth, I love everything about it. I love the charm, the old-school factor, the crayola crayon smells after the Phoenicians, the weird smell where the Great Library of Alexandria is burning, EXTRA EXTRA CIVIL WAR OVER. Geez I could go on and on. I guess it's mostly nostalgia for me.