If not for the absolute brilliance of Y.A. Tittle in his four years with the Giants, Charlie Conerly would be the greatest QB in Giants history.
Sure the record books may have Phil Simms a notch or two ahead of Conerly in terms of production, but the era of the quarterback was much different in Conerly's time.
173 touchdown passes in the 1950s looks a whole lot better than the 199 touchdown passes from Phil Simms in the 1980s, especially when so many of Simms' peers surpassed the 200 mark.
Conerly was the definition of a field general, something he likely picked up while touring with the Marines in the South Pacific during World War II. His teammates went to battle with him and he led them to greatness.
It's a damn shame Conerly played in the era he did, overshadowed by his peers Otto Graham and perhaps Norm Van Brocklin, as well as by teammates Frank Gifford, Sam Huff, and Rosey Brown (whom all appear on the list higher than Conerly and played most of their career with him as their leader).
He would likely have garnered Hall of Fame honors if it weren't for those extenuating circumstances. Gifford constantly pleaded with voters to put Conerly in the Hall but to no avail; the Giants still rewarded him by retiring his No. 42 jersey at the end of his career.