So I remember this guy two years ago, and wondered what happened to him. Per PFT, Mayock says he could go #1.
http://profootballtalk.nbcsports.com/2011/02/23/mayock-combine-may-put-robert-quinn-in-mix-for-no-1-overall-pick/
And here is the impressive highlight vid.
http://www.youtube.com/watch?v=UuKdkjZf5uk
He looks great, big, fast, plays the run well, has some pass rush moves. This leaves Quinn, Fairley, or Newton in play at #3 - depending on who takes who ahead of the bills. Another good possibility is that the Bills will have leverage to trade (3 awesome talents). But I think they should take one of these 3.