Manning is another notorious all-time loser; his only win of any consequence, pro or college, was against a team that had Rex Grossman for cripe's sake. Someone find where I posted his stats back around the SB with wins and losses in the NFL playoffs and in college in bowl games or vs. Florida. Staggering.
Also, comparing Manning years to McNabb years is apples and oranges. Manning gets hit about 3 times per season and his mobility has always been non-existent.