You're going to love BWV!!! It's my home resort..I'll be there in August as well. But, I digress....
The transportation at BW is pretty similar to the other deluxe resorts. You can walk to either Epcot or MGM but have to take the bus to AK and MK. Those buses aren't too bad, they come pretty frequently. It's those darned DTD buses that seem to be few and far between.
As for stops, the bus heads to BW, Swan, Dolphin, and sometimes to YC/BC. Now, there are times when it seems to head to the Swan first, then the Dolphin and then BW. When I was at the Dolphin in Dec we seldom went to BW...perhaps just once. When at the Swan last month, I don't think I remember stopping at BW once, so the bus must have already stopped there. Not much help, I know. But, I haven't had a bad 'standing room only' experience while boarding at BW yet, so you should be fine.