We like OKW, the rooms are bigger and you don't have a pull out sofa in the second bedroom. The patio is also larger you get a table and four chairs, (most of the patios face the golf courses, so in the morning you can enjoy jour breakfast and watch the golfers), where as in Saratoga you just get chairs.
We have owned OKW since 1992, and have stayed in all of the DVC resorts and OKW will always be my favorite.