Both are within easy walking distance of Epcot with BCV closer. If you want to walk to MGM, BWV is closer. BWV's advantages: (a) it is right on the lake (BCV is not) and the boardwalk view rooms (preferred) have excellent views; many others also have good views; (b) you obviously do not have to walk over to the boardwalk for its restaurants and nightlife (although BCV is just a short walk away); (c) front desk, small store, work-out room and bar are inside the building you are in (with BCV you need to walk over to BC (meaning go outside to get there); likewise main pool (which is very nice) is right outside building. BCV's advantages: (a) somewhat quieter; (b) the main pool (actually mini-water park) is huge and the best hotel pool at WDW and has sand bottom; (c) somewhat better bus route -- YC/BC now have their own bus to MK while BWV continues to share with Swan/Dolphin; (d) rooms look a bit more upscale -- e.g., better countertops and eating table; (e) you are much closer to the Cape May seafood buffet dinner (one of my favorites). Personal preference is BWV, but neither will disappoint.