For thrills, I love Expedition Everest (in the Animal Kingdom) and the Tower of Terror (at Disney Studios).
For nostalgia or a fun time that I can have with family where everyone rides, I like The Haunted Mansion, Pirates of the Carribean, and Soarin'.
And they're not rides, but I'd love eating at the Mexican, Chinese, Italian, and Japanese pavilions in Epcot, or the Crystal Palace in the Magic Kingsom.