Is there a reason BCV and BWV are not on the list? When I want to minimize bus usage, those two are my first thought.
Of your list, for me Riviera would probably be first, and then GF, if looking at transport only. For ambience, it would be Boulder, Riviera, GF. For access to amenities, it would be GF (proximity to other resorts) then Riviera, then Boulder.
You will have bus transportation to some destinations no matter where you stay.