Billy Casper. The man is more well known for his 106 in the first round of the Masters right now than he is for having the 6th most wins in PGA Tour history (51). He also has more major wins (3) than any of the aforementioned players besides Faldo. All the while he played in the shadows of Arnie, Jack, Lee, Miller, Weiskopf, and anyone else who happened to come along and win a few events. Pretty impresive to me.
Also, Walter Hagen. The Haig won more pro majors than anyone not named Jack Nicklaus, but for some reason, people don't give him credit for it. He's better known for the seemingly exaggerated stories of his late night exploits than his amazing golf game. 5 PGA Championships in the matchplay era shows to me that he was one heck of a competitor. :nodsmiley