Those are apples to oranges comparisons. You really can't compare guys like Manning, Brady, Brees with just stats. Same goes for Cutler.
Cutler's numbers actually show a couple of things on their own. Last year, 12 of his 18 INTs were thrown when Denver was behind. 8 INTs were thrown when Denver was 3rd and 6 or more. Now if he was throwing the most INTs on 1st Down, I would think that would be more alarming. That leads me to believe that some of his INT's were more situational and not necessarily his fault (trying to do too much, defense always postured against the pass).
He is still going to try to fit balls in when he is late, but a lot of times, those are risk and reward type plays. If he doesn't do that, the defense won't honor anything. That has been our problem for so long. Now we actually have a dangerous QB who is going to take risks. Will they always pay off? Nope, but the defense better be ready for them or they will get burned. Grossman actually had this going on for a couple of games, but eventually his skill caught up with him. Cutler's ceiling is so much higher. Just think if Cutler was our QB for the SB. I think we win easily. That is what we have to look forward to.