EPCOT Center was a pleasant surprise for me during my last trip to Walt Disney World. I remembered EPCOT as being purely educational and, therefore, purely boring. It turns out that Journey Into Imagination has been completely retooled (and features Eric Idle!), the aquarium is now an aquarium starring the characters from Finding Nemo, and the El Rio del Tiempo boat ride is now the Gran Fiesta Tour starring The Three Caballeros!
It's not the World's most exciting ride, but the animation was funny, and I loved the Small World kids bashing around a Donald pinata (conveniently for sale in the gift shop!). If you're a fan of the cartoon (and really, who isn't?), it's definitely worth checking out.