Look, it's lame at this point to project the potential winning percentages. All we can do is compare what we know through 16 games of 2008 and 12 games of 2009.
Of course winning percentage is important... and you never answered why the 5 win mark was so precious to you a few posts back.
You really have to ask why the .500 barrier is important?
Look, if you can't tell the difference in the number of games played against better teams from 2008 to 2009... I can't help you.
There are 4 games left and anything can happen, but at this point... I think it's silly to definitively say that without question, the 2009 season is harder for NE compared to 2008.
The facts do not support you... that theory (despite your many attempts) cannot be proven.
The AFCE is performing worse now than it was a year ago (they play 6 games against those teams, so it would lead one to believe that the quality of 'strength' has diminished in a year).
We'll see how the last 4 games play out... I'm sure the Bills, Panthers and Texans will do a lot to help the winning percentage for ya.