Aaron had his first Pro Bowl season last year. He took the Packers to the playoffs, where they were defeated by Arizona Cardinals (thanks to two blown non-calls).
He set a Packers playoff record in passing yards. I think that playoff experience will help Rodgers a lot.
I think Rodgers can break Dan Marino's record for passing yards in one season. He has the weapons, and his protection will be better.
I also look at Rodgers' mobility and the way he can get away from defenders. He can get a pass off before defenders can touch him.
The only person who can stand in Rodgers' way is himself.