You are MASSIVELY overrating Green Bay here, and you're underrating both Denver and New England. Both of these teams would beat Green Bay more than they would lose to them.
You write off Brady and Manning as "two old QBs". Yes, these two "old" QBs both had seasons much better than Aaron Rodgers did and were far and away the two best quarterbacks in the league (yet again). Nobody else belongs in the same category. Denver and New England have more talent at positions other than quarterback too.
Look at the defense-adjusted numbers (so you can't complain about easy schedules):
Brady: 35.1% DVOA, 2,035 DYAR
Manning: 32.7% DVOA, 1,800 DYAR
Rodgers: 23.3% DVOA, 1,444 DYAR
It's really not even that close.
http://www.footballoutsiders.com/stats/qb
It's also absolutely mind boggling that Brady was left off the All-Pro team. He leads all QBs in ALL defense adjusted stats and leads the 3rd highest scoring offense in the HISTORY of the NFL and he only gets 3 all-pro votes? What a joke.
It's obvious that Manning got the votes because of his comeback story (and he's the media darling) but it's crazy that Rodgers got in over Brady. The ONLY thing that Rodgers had more of this year was touchdown passes (39 to Brady's 34), but the Patriots also had 25 rushing touchdowns to Green Bay's 9, many of which were 1-2 yard runs to punch it in to the end zone at the end of a 80 yard Brady-led drive.