Manning is among the best ever. But as a whole, he has played very poor in the playoffs. He's been bad a lot more than he's been good.
That's my point. Yes, Manning has a ring. But, as I said, he's played AWFUL in the playoffs. Look at the 2006 playoffs.
NO touchdowns, 3 pics in the Wildcard game vs. KC
NO touchdowns, 3 pics in the Divisional game vs. Baltimore.
The first half of the AFC title game against New England, an interception for a TD and some horrible throws.
The big difference between those other years and 2006 is that defense and special teams FINALLY got it together. In fact, they had to do so in 2006, to atone for Manning's early mistakes.
Manning didn't really get his head right, until that second half of the AFC title game.