They all do plenty of decorations, but some really shine. And it depends on what they have to decorate. OKW for instance seemed to be very underwhelming. They don't really have an elaborate common area to set up all sorts of decorations, and really just ended up with some garland and lights on the windows at the check in area. Ditto for the Poly/Contemporary. Not really setup in a manner that works well with lots of decorations. The Poly does a good job, esp at dusk, but the Contemporary really just has the giant Mickey wreath you can see from the monorail, and then their gingerbread tree thing. GF is awesome, WL and AKL are great, all have huge trees and all sorts of decorations. Beach/Yacht/Boardwalk all do some cool display, and have smaller trees. I would recommend doing the loops. Hit up the Epcot resort loop, and then the MK loop making sure to take the boat to WL. If you can throw in AKL as well, do it.