You know a great way to talk to someone is to continue patronizing them over their age, that certainly shows that you are mature and know what you are talking about.
Peyton holds the rookie records for most TDs in a season (26), most consecutive games with a TD pass (13), most games with at least one TD pass (15), most games with 300+ yards passing (4). Saying that Manning was just "OK" his rookie season couldn't be further from the truth. I guess Cam Newton's season last year was just "OK". And remember this was a time when QBs had not been unleashed like they are now.
That season Peyton was second in passes completed, first in passes attempted, third in passing yards, fifth in passing TDs, fifth in passing yards per game, third in sack percentage.
The only thing you can ding him on was the interceptions, which were plentiful, but saying that his rookie season was just "OK"? Man, you must have pretty high standards.