Six divisions are already clinched. The No. 1 seeds belong to the Packers and Titans. But the AFC East crown is up for grabs between the Bills and Patriots, and the Rams are trying to hold off the Cardinals for the NFC West title. Three teams are battling for the last two playoff spots in the AFC, and the 49ers and Saints are in a final-day duel for the last NFC wild-card berth.