(SI.com breaks down the greatest pick in the history of the NFL Draft at each first-round spot.)Elway's knack for come-from-behind wins gives him the edge over Troy Aikman and Terry Bradshaw as the best No. 1 pick of all time. A couple of running backs, Earl Campbell and O.J. Simpson, were strong candidates, and Peyton Manning may enter the debate later. But for now you have to give Elway the edge. Chuck Bednarik, the first pick of the 1949 draft, was certainly the toughest guy to go No. 1 overall..