Like one of the pp's, we stayed at OKW Dec 4-11th. I would say the buses were about the same as all the other resorts...consistently inconsistent! We got lucky several times and had less than 10 minute waits. I believe there were 3 times when we had to wait longer than 30 minutes. Each of those times, we had (and others at the stop) called which I don't think helped at all. What was annoying was when two buses going to the same park would pull up RIGHT BEHIND EACH OTHER! And that happened over and over and over. You would think the drivers could report it and go to another park or at least hang back for 10 minutes and wait for some people going to that park before just pulling away completely empty. That's my rant.
As far as the route someone asked about, I wish I could remember the name of our stop because it was always the first one, I think we were in bldg 29. I can tell you that the Hospitality House was always the last stop before the bus would leave the resort.
Depending on your luck, the boat to DTD can be a great option, but if just miss a boat you'll wind up waiting longer to get to DTD as the boat ride itself is takes longer than the bus ride - at least that's what we were told.