Moon was 28 years old as an NFL rookie due to racial bias within the league for the QB position, which drove him to the NFL. Despite this, he retired in the top 4 in NFL history in passing completions, passing yards, and passing TDs, and he made 9 Pro Bowls. That is really impressive considering he was shorted by 5-6 seasons in comparison to most NFL QB greats.
Moon is also the greatest African American QB of all time. Not really something Ryan can compete with, but it matters for purposes of Moon's place in NFL history.
Another way to look at it is how they ranked in their careers against their peers.
- Here are their top 10 finishes, ordered from best season finish to last:
Moon (10 seasons): 1 1 3 3 3 5 5 7 7 10
- Ryan (9): 2 3 4 5 5 5 6 8 9
- Edge: Moon
[*]Ryan has finished in the top 10 in passing TDs 9 times so far. Here are their top 9 finishes, ordered from best season finish to last:
Moon (9): 1 2 4 5 5 7 7 8 9
- Ryan (7): 2 3 5 6 6 9 10
- Edge: Moon
Frankly, it doesn't look particularly comparable at this point, though Ryan obviously isn't done.