We love WL! We went in 2000 and again this year. There's just something about the place!
We never had a problem with the bus being full when it picked us up...we just thought it was kind of a long ride as it looped thru FW after picking us up. But, on the way back - you get off first!
The boat to MK (when we were there) went from WL to MK, but on the way back from MK, went to FW and then WL. I think that sometimes changes, because the boat driver announced we'd be going by FW first. We ended up using the rental car more than WDW transportation...but that had a LOT more to do with my fatigue level this year than it did with the transportation. When we were there in 2000, we used nothing but the WDW transportation, and thought it was fine.
My only disappointment with WL this year was that the pool was CRAZY...but again there were two factors 1) the time of year - we'd never been in July! Wow, it's busy! and 2) my fatigue level meant we couldn't think opposite the masses. We almost always try to avoid pools during the peak times in the afternoon...but by 2:00 or so, I'd be waning, and needed to dunk in, grab a frozen libation, and cool off! That put us there at a really popular time...so my opinion on the pool is completely biased by those factors.
You will LOVE WL - Have a great time!