All are exceptional I think. Although I haven't stayed in WL or BC, I have visited on many occasions. My sis fav. place is WL, which to me is very similar to AKL, and also very close to VGC ( which we did stay at last Feb. ) Same architect I believe.
Yes the proximity is there if you mostly go to MK, but the buses are no prize from what I've been told.
BC to me is very nice. At least what we've seen. Our friends love staying here, when we stay at BWV. True they have an awesome pool, which ( believe it or not ) can get nerving, and plenty of places to eat, plus it's close proximity to 2 great parks. Either walking or boating.
BWV. This will be our 2nd stay here, this summer , and looking forward to it....We chose this resort because there are 7 families and each won't want do do what all others want , every second of the day. So it's just an easy walk back to the resort.... So many things to do & see here too. The only drawback we had when staying here the last time, was the bus ride to/from MK...We got picked up 1st, then Swan , Dolphin, YC, & finally BC, then off to MK....Never once did I have a chance to keep my seat, *( which is fine ). Now I though returning from the park , we'd have the perk of getting dropped off 1st, but nope. It went to Swan & dolphin then to the others. It got to a point where we just got off and walked across the bridge... Very Annoying...Hopefully things have changed with that.
AKL/V: to Me this place is a vacation, within a vacation..... So, So much to do here, and see....& I disagree about just only getting a savannah view...True it is nice, waking up & seeing them, or just having a beverage on you balcony, but the price difference doesn't do it for me....I actually stayed in a value, and we had a great location, as well as a nice view of the pool too. Jambo house that was. Between the 2 resorts there are 4 main places to eat at, and also QS at both pools. Also The pools are very different but equally great too. 1 w/ a nice water play area for the kids.
Stayed twice and wouldn't hesitate staying more times there..... Forget what people say about the buses here too..
The furthest was MK but no more than 20 mins. * Which was what it took us from BWV.
AK, is like 5 minutes, HS is about 8 or so and EPCOT maybe 11. The buses run seamlessly here, and never did we wait very long.
Good luck in whichever you choose, but as a pp stated, if this is for an upcoming trip this August, you may be limited to what resorts you can choose from.