Epcot at night is the best! Since it is open later than the other parks when we go, we do usually split it up over several nights. If you go during the Food and Wine Festival, you will find that area to be very crowded starting at dinnertime and getting progressively crowded as the night wears on. Don't know if you have kids, but we had a problem with those on their way to becoming drunk... mainly tripping over our stroller and causing us to stop suddenly. We found ourselves in Future World which was very, very pleasant and uncrowded. Many attractions were open until night, including Spaceship Earth, Imagination, Test Track and Mission Space. I love the fountain shows there and, really, the whole atmosphere is just so fun. This was the first time we were in that section of Epcot at night and what a pleasant surprise that was!