Here's what I would do:
a)) Buy a tour book that describes all the rides and attractions.
b) Start a new thread. Tell us who is going, and when and for how long. And your tolerance for roller coasters, any medical conditions that would make Space Mountain or other jerky rides an issue.
And ask everyone their "must do's" in each of the park... and why.
Here are my own personal favorites:
Magic Kingdom: Splash Mountain, Big Thunder Mountain, Pirates of the Carribean, Haunted Mansion, Monsters Inc Laugh Floor, Buzz Lightyear.
Epcot: Soaring', Spaceship Earth, Test Track, Mission:Space, and the World Showcase
AK: Safari, Kali River Rapids, Festival of the Lion King, Nemo
DHS: Toy Story Mania, Great Movie Ride, Stunt Show.
I"m not a big scary-ride person. My husband would add Exibition Everest, rockin roller Coaster and Space Mountain. The kids I teach would also include Tower of Terror.
Of all the evening displays, my FAVORITE is Illuminations at Epcot. I also enjoy Wishes and Fantasmic, but Illuminations is my hands down favorite.