How many playoff wins does each team have with those QBs starting the games? I bet its close.
Manning has more MVPs than McNair.
McNair never singlehandedly won a game for the Titans. Neither was Manning.
I really dislike when people say "So and so is just a winner." It's silly. What do you think got McNair his CO-MVP (yes, CO) award? Numbers.
You're very much entitled to evaluate QBs by Super Bowls, but its not, IMO, the most logical way. Peyton Manning is the best passer in the NFL currently, hands down. Palmer, with more experience, will be equal.
Anyway, it's a pretty fair assessment that your opinion is too hard on Manning and many Peyton worshippers' opinions are too kind on him. In the middle, probably lies the truth on Peyton Manning.
It takes 48 players, an entire staff and front office, and some luck to win a title in the NFL.