We were there 7/30-8/4. The bus route was Swan, Dolphin, BW, YC, BC. I can't remember the sequence for BW, YC, BC. I know that the Swan was first then Dolphin then the other 3 resorts.
We historically have our vacations that last week of July into early August. This is the first time the bus route included the other 3 all time we were there. I only remember Disney including BW on previous year's trips but that was not often.
Even with the other 3 resort stops, we were at MK in about 20 minutes.
My experience has usually been Boardwalk, Swan, and Dolphin to the MK. However, there's a thread on the resorts board about a disappointing stay at the Beach Club. Much of the discussion is about the bus service from the Epcot resorts: http://www.disboards.com/showthread.php?t=2979782