We went to the Magic Kingdom early Saturday morning and it was great! Tomorrowland got crowded really early but Frontierland was quiet for a couple of hours. I read recently that Saturday is a big travel day so the parks are not too bad. We spent most of Sunday at the Studios and it was not really bad until later in the day. I would guess a lot of people were coming for the evening EMH and that's what made it really crowded Sunday night.