It's been a long four-month stretch of NFL football, and some teams that looked good in September no longer look even decent. The Week 16 Power Rankings still show the Patriots at the top, but after that, things are wide open.
In the NFC, Dallas, New York and Seattle can make a claim for the best team, but don't count out Atlanta either. In the AFC, could Oakland or the Steelers challenge the Pats? Stay tuned.