If you mean which resort gets fully booked -- all of them! Since OKW is now 10 years old, many people have made it a family tradition to spend Christmas there. I've even seen people with small U-Hauls to hold the tree, decorations, presents, etc. There's lots of space for family reunions. The BWV and BCV both offer easy access, especially for NYE. And, the theming of VWL shines at Christmas.