Is the proof in the pudding? Last year the in head to head match-ups the two conferences were dead even against each other, 32 to 32. The Super Bowl which the Giants won was the tie breaker giving the NFC a 33-32 advantage in the head to head series for 2007. This was great news for the NFC considering how baldy the AFC dominated the series in 2006, 41-24, (including Super Bowl 41).
This year, the AFC is back in charge leading the series 34-29-1 heading into the post season. After week 13 the NFC was actually in the lead 24-21 but down the stretch, in December, the AFC dominated 13-5 to take the lead. Now the best the NFC can hope for is to win the Super Bowl and cut that final deficit down to 4 for 2008. Of course winning the Super Bowl goes a long way towards evening that up IMHO.
The AFC has clearly been the better conference for the past decade and half, (ever since ending the NFC’s streak of 13 straight Super Bowls), winning nearly every series match-up during that time and winning 8 of the past 11 Super Bowls.