We just got back from our first trip "home" to the BCVs last week, and I have to vote BCV. As DisneyDuo said, it really is the best of both worlds - all worlds really
The rooms are really beautiful - light and airy with colors that are very relaxing and comfortable. BWV are done really nice too, but I think the colors are a little more "vibrant" and busy.
The food and drink options at the resort are great, and you have a character meal right there at the resort - Cape May (best dinner we had during our stay), Beaches and Cream (great chocolate shake), Hurricane Hannah's, Martha's Vineyard, Yachtsman Steakhouse, Yacht Club Galley, Crew's Cup Lounge.
You've got Epcot and Boardwalk within walking distance - lots of entertainment! MGM is there too. You are near all the action, but you have your peacful "seaside" resort to come back to for rest and relaxation. Walk or boat to Epcot. Walk to Boardwalk. Boat or walk (if you are up for a really long walk) to MGM. It's great!
Stormalong Bay really is great, as is the quiet pool dedicated to the Beach Club Villas. The dedicated pool is so serene, and Stormalong Bay is a truly great complex of pools to choose from. We spent some time at the kiddy area where my 3 year old had a blast sliding. Then we went over to the zero entry sand area and played a while in that pool. And had we had more time and the breeze been a little less, we would have done some of the other areas of the pool too. Just having that mini-water park to look at was fun in itself!
You don't have to drive or walk for miles at the resort to get where you want to go. I was afraid I'd feel like I was hiking everywhere, but I didn't. Even my mother, who has trouble walking long distances, made it fine. You learn little short cuts that are not only obviously shorter, but take you through some really beautiful areas of the resort.
I could go on, but I am going to save the rest for my trip report - coming soon. Hope this helps!