Back in December I booked a Wishes birthday cruise. I was actually trying to get an Illuminations cruise, but they were already booked for that day and they asked me if I would like a Wishes cruise (I did start calling early and followed all the directions in the sticky at the top of the forum page). Then they asked if I would like to make it a Birthday cruise, so I did being that DS's will be turning 13 two weeks after that. So as long as they have boats available for either cruise, I think you could have a choice. Also you have a choice of which MK resort you want to depart from, we picked the Polynesian.