I love Epcot. It has such variety that there is something for everyone. We have spend days and days at Epcot on previous visits, and I don't think we are close to being to the point where we have seen it all!
Illuminations, the spectacular fireworks display at the park's close is wonderful. Be sure to stake out a spot around the lagoon early, because it does tend to get packed at viewing time!
Strolling through the countries in the World Showcase is so relaxing and enjoyable. I love to taste the foods from the different areas, and stop and watch the movies and ride the rides for those pavillions that offer them. The restaurants in the different countries are terrific as well.
I the rest of the park as well ... from the Living with the Land ride, Soarin', Mission Space...it is all fantastic entertainment
One of my favorite things to do at Epcot is sitting with a snack and watching the fountain -- it is so pretty, and at certain times, the water is in sync to the music playing -- it is relaxing,and a beautiful thing to watch.