Lowest amount of pressure faced by quarterbacks. 1st Peyton Manning (19.3%), 2nd Andy Dalton (22.8%) & 3rd Stafford (25.8%)
Of all QBs w/at least 100 dropbacks Mike Vick has faced the most pressure (46.5%). 2nd is Russell Wilson (44.6%) & 3rd Matt Schaub (44.4%).
These numbers don't mean a lot without knowing how long the QBs take before releasing the ball. Manning reads the defense and gets it out quickly. Sometimes, pressure is on the QB as much as the o-line.
Of course, Schaub took a big contract which pretty much forced the team to go with young linemen on the right side. If Schaub needed a vet line to protect him (and that seems to be the case), maybe he wasn't worth the $$$ he got?