It's pretty hard to compare QB's over time. The rules have changed with regards to how the defense can handle WR's. It's much easier for QB's today to complete a high % of passes as their receivers can't be bumped all the way down the field, DB's used to be able to mug receivers. No doubt Brady is one of the best of his era, but to say he's better than Bart Starr, Johnny U, Joe Montana, even Otto Graham....well we all know that can't be done.
Doc's right. Based on his formula, the greatest QB to ever live.....Jimmy Plunkett. Jiffer!! You can't possibly argue that!
Plunkett...play option.....Plunkett throws.....(15 seconds later).....Cliff Branch!!!.....MIRACULOUS CATCH!!!.....TouchDown!!