Jeff: The best way I can describe it is: The One is more of a deeper in the water surf feel where as the 2010 Bill is a more floaty snowboard feel.
There's a lot of traction running through the tail on the One where as most of your grip comes from using your edges on the Bill.
The One has a more pronounced kick off the wake but the Bill still gets you up there. The Bill shoots you up without you feeling any real aggressive push. Its quite a nice feeling actually.
Not sure if you're ever going to take the Bill on rails but its a trooper! Takes on so much abuse and shows very little wear. By far the longest lasting boards I've ridden since 1997.
Again highly suggest taking one for a couple demo sets.