New England has the same cap available as DEN, so to say Brady has less is stupid. He just has more in other areas, and as a team sport that's all that matters.
I can see you using Mannings weapons as a reason for more passing stats, but as far as team success its an equal playing field and Manning and Denver were better than NE.
This is true over the course of their careers. This year, the Patriots had about a third of their cap tied up in players who were injured or allegedly murderers. Five of those players - Wilfork, Gronk, Mayo, Hernandez and Vollmer - had a combined cap hit of 24.8 million.But you're right - over the course of their careers, they have each enjoyed the same cap. Which is why it's a bit silly to say that Brady only won because he had better "teams", but it's absolutely ridiculous to give Manning full credit for his statistical accomplishments in the regular season, but then when he has a poor individual performance in the playoffs, and is unable to deliver the ball to the incredible offensive talent around him, to call it a "team loss".
We can debate how much of a role Manning had in setting the record, as opposed to those incredible receivers. We can debate whether the Patriots defense deserves credit for giving up 29 points to Jake Delhomme in 2003, or if Brady deserves any credit for throwing for over 300 yards and ran for a TD against the Raiders in a blizzard in what would become known as the tuck rule game. But it's hard to debate that Manning's two interceptions, one fumble, two incomplete passes on fourth and two, and one safety are an indictment of his team's performance