We own at BWV and my favorite resort is VWL. I'm very content with BWV and glad I bought there when I did.
But if I were doing it today, the lower buy in cost and dues at OKW would probably win me over. We love the BWV location, and don't drive, so OKW might change the way we vacation - more rental cars. At the time I was able to get the BWV contract at the same price as the OKW contract - OKW didn't have a pool slide, and the OKW contract we originally bid on resale fell through.
I've never stayed at OKW and have really no intention of doing so - my Standard View BWV points are nearly as frugal.