Both resorts are Disney Vacation Club resorts and both have beautiful accomendations--other than that they are completely different.
BWV are located in a fantastic location. You will be within walking distance to Epcot and MGM, numerous great restaurants, shops, and night time entertainment, the resort offers full deluxe resort amenities such as room service, valet parking, etc. The atmosphere at this resort is very up beat and there is a lot to do. It is a beautiful area and at night time it is especially beautiful. The main pool is very nice with a great water slide and life guards.
OKW is located around a golf course so the views are of the golf course. This resort is not located close to any parks and the guest must rely on either their own car or bus transportation to everywhere except DTD which has a boat shuttle that runs from noon to 10 PM. There is 1 restaurant and 2 snack bars for food. The main pool does not have a life guard or a water slide. Room service and valet parking are not offered but you can park in the parking lots that are located in front of each building. OKW is very quiet and laid back, after 9:00 PM you hardly see anyone out and about unless you go to the main building which houses the restaurant and the store. OKW is a huge resort so some of the buildings are very far from the Hospitality House which has the restaurant and the store.
Both are very nice resorts, it all depends on what appeals to you. If you want to be close to parks, restaurants etc in a upbeat atmosphere than BWV is the best choice. If you want a quiet atmosphere to relax in with not a lot happening then OKW would be the better choice.