Who exactly? You can (easily) stop the Falcons if you keep their offense off the field like the Eagles did yesterday, their D is nowhere near good enough to make a serious run in the playoffs imo. The Vikings look completely void of ideas on offense, the Packers secondary and running game is non-existent and the Cards don't look good enough to stop either the Hawks or Boys. As it stands right now, Seattle vs Dallas is an obvious choice...Haha while that is the most likely game at the moment, there are a lot of teams who can stop that from happening was my point.
In the AFC it's going to be Patriots vs someone out of the AFC West imo. Houston isn't good enough and the North looks as bad a division as anyone right now.