As others have said it is such a personal preference. If you are looking at BCV vs BWV, they are so close in proximity that you really don't need to take that into account. The other things that I would say would be look at the decor and theme of each resort. We much preferred that beach theme to the boardwalk theme. I like walking on the peacefulness of the beach at night as opposed to walking on the boardwalk. If I really want to go to the night life of the boardwalk, I can walk there in 5 minutes.
One last big thing to consider between the 2 is that BCV has 25 dedicated 2 bedrooms that have 2 queen beds in the 2nd bedroom. BWV's have only lock-off units so the 2nd bedroom has 1 queen bed and a pull out sleeper sofa.