Its the last 3 seasons which shows a trend. A trend of elite production and no signs of significant decline.
And this guy disappeared against NO, Wash (twice) and Philly, so what is your point?
DeMarcus Ware Game By Game Stats and Performance - Dallas Cowboys - ESPN
I'm not saying Abraham is as better or as good as Ware, but my point is that box score doesn't really give much of an indication of the performance of a player, especially a pass rusher. The difference between John Abraham and DeMarcus Ware is that Abraham doesn't have Anthony Spencer on the other side getting 11 sacks and taking away some attention. Abraham was the only real threat on that Atl D-Line, he was schemed against and still put up 10 sacks. Now, he is aging and will slow down eventually, but that is why he would be a situational guy and not an every down DE.