We've got 2 kids (4 and 18mo), every trip we've done, we do Epcot first. My kids both like it, we do AK the second day (DS's fav) and then MK and MGM last. If I had to drop one, it would be MGM. But I like the idea of park hopping on an EMH day with AK and MGM. If one of the parks had EMH, we could definately do both in one day.