I have to say MK, our fave park, and then Epcot, though we love HS, too, and that might the good second park for the kids. We aren't to into AK, so we only go there every couple of years for a half day. But, my opinion is that MK is a must do, as Stacey says! But, unfortunately, POTC is closing for a long rehab, like on May 11(18th?), so that will probably be closed for your trip if I read your signature ticker correctly. Have a great trip!