We stayed at OKW for the first time in May. While we enjoyed the size of the 1BR there and the quiet atmosphere, we really didn't feel like we were at Disney when we were at our room. While that is a plus to some people, we want to feel like we are AT Disney 24 hrs. a day.
In short, if you want to feel like you are at a condo anywhere in Florida, go with OKW. If you want to feel like you are in Disney 24/7, go with VWL.
Also, remember that if you don't get a first floor room at OKW, you'll be trudging up flights of stairs to your room after doing the parks.