We own at both. I'll try to be somewhat impartial, and give you my opinions of both.
Resort:
I love both resorts, and like the theming of both.
- VWL is themed in a darker, rustic "mountain retreat" decor, while BCV is themed in a bright and light pastel-ly beach decor. Owning both is like having your mountain retreat and your beach retreat.
- Both have room service, and you have to walk outside to get to the main hotel from each of them.
- Both have onsite childcare, and it is about equi-distant.
- The health club is located on the ground floor of VWL, and you have to hike over to the area between the Yacht and Beach Club to get to the club at BCVs (oh well, you get your stretching done on the way over

).
- DS (10) says that the arcade has more in it at BCV, but he likes the one at VWL more.
- The quiet pools are about the same distance away at both resorts.
- It's a hike to SAB, and a much shorter walk to the main pool at VWL.
- The con on the shorter pool walk is that the VWL quiet pool is the only quiet pool at the resort, so when the main pool gets crowded, the quiet pool gets a ton of "spill over". The quiet pool at BCVs is usually pretty peaceful.
-When it's crowded, SAB can get busy, but because they check to make sure that only authorized people are swimming at SAB (and eliminated hopping), it's never been too crowded to swim at BCV. Because VWL has a smaller themed pool, we have found it too crowded to swim there on occassion.
Transportation:
- It's a short walk to Epcot and MGM from BCVs, but bus transportation to MK and AK can be a pain in the neck during busy periods. Since they've added the second set of busses for BW and the Swolphin, it seems to be somewhat better. We don't usually use the boats, because we prefer to walk (I know... freaks!

)
- Short trip to MK, and the boats are nice change. I dislike having to go to FW on the boats though, because it doubles the trip. We don't really like the bus service from VWL. It tends to be decent or really bad, so we prefer to drive if we're not going to MK. It would be great if you could walk to MK, but you can't, so we don't

).
As you can see, I really think that each resort has its pros and cons. That's why we own both. They really compliment each other well. We like to spend a couple of days at VWL while exploring MK, and then switch over to BCV to do Epcot and MGM.