I don't think you are right about this one. I'm not 100% sure if it was 4 or 5 games, but that's how many times he gave his team a lead within the last 2 minutes of a playoff game, just to see it from the sidelines as his defense coughs it up.
It is not an excuse, it is a fact, those Indy teams most of the times had average, or even terrible defenses, especially against the run. Manning lost a playoff game where he went for 400+ yards and 4TD's/0 INT's if i remember correctly.
I'm not saying Manning is better than Brady, but they are extremely close in terms of skills, and the supposed difference between their mental strength is over-exaggerated, or flat out doesn't exist.
Manning had a higher QBR in the playoffs up until last year, maybe even now. Personally, i think Brady has one big advantage, he doesn't overthink as much as Manning. Manning's biggest flaw is that he is sometimes overthinking the game.
I rate Brady higher than Manning at the moment, but if Manning would be able to win another superbowl, i'm pretty sure most expert would rate him higher than Brady. Brady is great, don't get me wrong, but he wasn't nearly the player early in his career that he is now.
His peak from 2005 till 2009 was much more impressive to me than his early years, even though he couldn't win another Super Bowl. Also, if Brady manages to win another one with this roster this year, or next year, i will rate him as 2nd all-time below Montana, and another MVP would probably seal it for him.
I know you guys will probably hate this article, but i think it is a spot on piece.
Bill Barnwell on Tom Brady, Peyton Manning - Grantland