Rides: I don't have a favorite out of all four parks but I can tell you mine at each:
Magic Kingdom- Space Mountain, Spalsh, and Thunder Railroad
Epcot- Test Track
Animal Kingdom- either Expedition Everest or Kali River
Hollywood Studios- Rockin' Rollercoaster
Parades/Shows: American Idol Experience, Wishes, and Illuminations
Restaurant: Hmmm... thats a hard one! Chef Mickey's at the Contemporary Resort, Corral Reef, Crystal Palace, or Cinderella's Royal Table. No most favs lol.
Hotel: Contemporary (going in 10 days)
All of the parks ( Magic Kingdom or Hollywood Studios though)