With only two weeks left in the 2012 NFL season, the claim for the league's top spot is as competitive as ever.
Week 15 saw Atlanta embarrass the defending champion New York Giants, the Packers lock up the NFC North with a road victory against Chicago and San Francisco fight off a second half rally by Tom Brady and the Patriots to secure a tough win in Foxborough.
Were any of these marquee wins enough to catapult the winners to No. 1?
When was each team playing their best football? Was it in September, are they playing it now?
Remember, power rankings aren't solely a reflection of record, instead it's a list of who is playing the best football right now.