I wouldn't pay that difference. However, WL villas are under construction. You should be away from it in the Deluxe rooms, but the villas will be effected. I also think some beach and the villa pool (which may effect overflow to the main pool) are effected. Note too that the deluxe rooms are not on the same floor as the lounge at WL.
Also, are you evenly dividing yourself among the parks, or is one location more preferred than the other because of where you plan to visit?
I have been to enough resorts that I look for the deal, which makes be balk at a $2,000 difference. However, given construction and the proximity of the deluxe rooms to the lounge, I would be looking for a different deal, if one were out there.