Not for nothing, you can hate them all you want, but you can't take away what the Mannings have done in the NFL. I feel Brady will be remembered as the better QB when all is said and done, but Peyton Manning will go down as a top 5 QB of all time. Brady will probably be in the top 3. Eli has been incredibly clutch in the playoffs, more so than Peyton. What he did in 2008, though still a huge dagger in my heart, was incredible. 3 road wins against heavily favored opponents. 2011 was just as incredible. To lead the Giants to two last second Super Bowl victories is nothing to sneeze at, though the first one had a lot of luck involved. Archie was a warrior on a horrible team.
I think Peyton is the greatest regular season QB ever, but his legacy will be the playoffs. He will be remembered as a guy who choked a lot in the playoffs.
The Mannings are not horrible people, I suggest you watch the documentary about them. Archie was a wonderful guy who had a tough life as a teenager, and turned himself into a great Dad and grandad. There are some me things I don't like about Peyton, throwing his teammates under the bus and such, but they seem like nice people, the whole family.