In MK: Space MT. Splash mt, Big thunder mountain railroad, Buzz lightyear, Haunted Mansion, Pirates of Carribbean, Mickey's philharmagic ( don't miss this one), Peter pan and It's a small world. If you have time hop on the tommorowland transit authority( TTA) it's nice and relaxing.
In Epcot: There's Testtrack, Mission space, and Soarin', also Spaceship earth.
In MGM: there'S Tower of terror, rock n' roller coaster, and alot of the shows loke little mermaid and beauty and the Beast, The great movie ride is fun and so is the backlot tour.
In Animal K: Definitely do the safari, Kali river rapids, and Dinosaur. But also go see the Festival of Lion King....it's a must.
Hope this helps!