The title should be obvious. For me, no question about it, it's Epcot.
Why? Because it is unlike any other theme park in the world. It is fun and exciting (Soarin', Test Track), it is multicultural (World Showcase), and it dares to do something that is very difficult to do during a vacation, to educate (Innoventions). It also has THE best night-time fireworks show in all of WDW - Illuminations.
Nothing about Epcot and about Illuminations are easy to pull off, and there's nothing ordinary or common in both of them. And the fact that they do is enough for me to rank Epcot #1.
Zz.
No longer an active member.