Did both back in 2004 in May. Walking around in Epcot was fun. We did not see a single other person in the park not even a CM and took lots of pictures but walking down an empty Main Street is a totally different experience. I have pictures on Main Street and in front of the castle with almost no one in the background. If I was to pick one, hands down it would be in MK. We are going again in 4 weeks and made an early BBB appointment just to have the same experience. Could not get an early CRT. We also have an early Askerhus at Epcot.