My main complaint with the BWV busses is the lack of any organization for the people waiting, unless things have changed. There are no signs or roped off lines for the different busses to different parks. Very annoying when you've been waiting 15 minutes and another family just walks up and tries to get ahead of you to board the bus. The busses are not very roomy. And I understand that the waiting area is small; but something really needs to be done about this. I've seen people on these boards complain about numerous MK busses coming, but waiting "forever" for AK. Keep in mind that more transportation is most likely provided when certain parks have the "early morning extra magic hours". And if the bus is full, it most likely will not stop at the Swan and Dolphin in the morning.
Enjoy your trip. We love BWV. It is busy but relaxing at the same time.