I've been trying to come up with a reasonable explanation as to why Brady can get over the hump and Peyton can't. I think I've got one answer which I'll lead to below.Comparisonassing - Pretty even, both extremely accurate with plenty of arm strength. Possible edge to ManningReading Defenses - Both excellent, possible edge to Brady.Leadership - Both get the most out of their players, have good leadership qualities, possible edge to Brady.Mobility - I think this is the difference. Brady seems able to escape a rush, move out of the pocket, etc. and Peyton can't seem to get away.I think one or two plays in a big game where a sack is replaced by a completed pass or even an incompletion is a huge difference. Big edge to Brady.Thoughts?