He is a huge part of their offense to be sure and he is far from some slouch.
All that said, he's probably a bit overrated based on actual performance. His 18 rushing TDs are beastly but thats the one area where he really stands out. His yards per carry number is really low for a star quality guy. He is right at the top for most fumbles and when he is in the game they hand it to him right at half the time. He is not a threat at all in the passing game.
He is their top weapon but I don't think he is going to beat us unless we forget to defend the pass. He will have enough success to mean we can't just drop 8 all day.
The fear with Minny is that AP does enough to help control the clock and then Favre gets hot at the worst possible time for us.