When the proverbial question comes up concerning who was the greatest NFL quarterback ever, the two most prominent names mentioned are Johnny Unitas and Joe Montana (and deservedly so). But to say one is better than the other often sparks heated debate. But if Johnny Unitas was arguably known for his toughness and athleticism, Joe Montana was quite possibly the most intelligent quarterback to lace-up his cleats- and definitely the greatest quarterback both in the big games and the greatest moments. Moreover, Montana was simply the greatest at the clutch, as few others could match his ability to snatch victory from the jaws of defeat. Anyone remember the 'Drive to Glory' against the Boomer Esiason led Cincinnati Bengals in Super Bowl XXIII with 42 seconds to go? Yes, the legendary Johnny U is one of the great icons in professional football lore. However, Joe Montana is professional football's greatest winner (and both deserving as the NFL's all-time quarterbacks).