Personally, Oahu is my least favorite HI island, so while in terms of "luxury" the JW maybe the nicest, I would prefer one of the other islands myself. If money and points isn't an option, I might try and see if I can get a reservation for the Waiohai on Kauai or the Maui Beach Club on Maui. They are both MVCI properties. Much more room, very nice layouts and overall good locations. Because they are timeshare locations, it is very hard to even get paid rentals at the properties, but if you can snag one, they are worth it.