Magic Kingdom - The little mermaid. I don't know why but I love this ride. I'm going to admit I have done it 7 times in one day.
EPCOT - Captain EO. It's really corny but it's a lot of fun.
Hollywood Studios - Beauty and the Beast. Not a really good or bad show for most people, but I go see it all the time.
Animal Kingdom - Primeval Whirl. Yes, I wait in line for this.
Universal Studios - Twister. It's really well done past the first room, and the audience reactions are always great.
IOA - Camp Jurassic. Yeah, I'm 18, but I still run through it.