If your looking for night life you can't beat SSR, PI and WS are within walking distance even after a night out. Nice paths along the water for the walk back to your room. Most of the rooms have good views, Congress Park overlooks DDT/PI on oposite side of lake, at night this is really pretty.
If it's seclusion you want VWL is hands down the tops.
Grew up in AC New Jersey and usually go to OC MD or Mrtyle Beach SC every summer so I get my fill of boardwalks even though it's a great resort.
We now live in the Pocono Mts. in Pa. so VWL although really nice is not a big change in scenery.
Have not stayed at OKW yet but have heard a lot nice about it. Sister and BIL love it.
We stayed at Y+B Club before buying into
DVC and I was not at all impressed (except for SAB), don't know how this reflects on the BCV but the hotel left me with no desire to go again. Although location can't be beat if you are a big Epcot fan which I am.
Hope this helps a little, best advice is probably to go down and check them all out for yourself before buying. Depending on how you plan your vacations buying where you want to stay can be very important, and a wrong decision can leave you very unhappy with the choices you get later on.