Epcot:Test Track, Mission Space & Soarin' along with World Showcase.
MGM: Tower of terror, RNroller coaster, and the new stunt show.
AK: Festival of the Lion King, Dinosaur, and Kali river rapids
MK: Mickey's philharmagic, space & splash mountain, Big thunder mountain railroad, Haunted Mansion.....I love EVERYTHING in this park.
Also, make sure to catch all of the nightime shows at Epcot, MGM, and MK.