Rides and shows:
MK: The triple mountain (Space, Splash and Big Thunder), Philharmagic, Pirate of the Caribbean, Buzz Lightyear's Space Ranger Spin, Haunted Mansion, Parades and Firework.
Epcot: Mission Space, Test Track, Soaring, there is a ride inside one of the imagination pavilion where you can create your own roller coaster (forget the name), Maelstorm, Illuminations. If your feet are tired and need a break: Spaceship Earth and Ellen's Energy Adventure. Also check out the World Showcase.
Animal Kingdom: Expedition Everest, Kilimanjaro Safari, Dinosaur, Kali River Rapids, It's Tough to be a bug, The Festival of the Lion King, Finding Nemo The Musical, Parade.
Hollywood's Studio: Twillight Zone Tower of Terror, Rock and Roller Coaster Starring Aerosmith, Toy Story Mania (need to get fastpass as soon as you are arrived at the park), Star Tours, Lights Motors Action Stunt Show, Muppet Vision 3D, Fantasmic, Indiana Jones Epic Stunt
These are only my suggestions based on what I love from each park. There are many more rides and shows that I do not include.