As much as I hate to admit it.... the answer has to be Brady. When I think of the offensive players he's had. Other than Randy Moss for a couple years and Gronk in the last few, he's had zero no HOFers to play with him or even perennial All-Pros. That's just amazing. They never won a SB while having Randy Moss and while Gronk is an incredible TE, he hasn't done it long enough to be a HOFer yet.
He's done it with the likes of Julian Edelman, Deon Branch, Kevin Faulk, Troy Brown and not much else. What other QB on the list can you say that about? Every other one of the G.O.A.T. candidates had HOFers at the skill positions.... the other guys had Thurman Thomas, Andre Reed, James Lofton, Jerry Rice, Franco Harris, Lynn Swann, John Mackey, Dwight Clark, Terrell Davis, Marvin Harrison, Edgerrin James... no comparison