If the resort atmosphere is very important as it is to my family, then Its a great idea to split up your stay,although I wouldnt really do it unless I had at least 3 nights at each resort. I tried last year with a 2 day stay at carribean followed by 4 nights at WL. It was cool, but the 2 nights at the carribean beach just werent enough. It seemed like I checked in and before I knew it I was packing for the WL. This year we are doing 3 nights at the carribean beach followed by 4 nights at the AKL. Other posters hit it right on the head. It really does make it seem like 2 different vacations, especially if the resorts are really different from eachother.