I'd say Baltimore and New Orleans at this point.
NE is riding Brady into the post season, lacks defense and has very few offensive weapons. If you look at their schedule, they played a bunch of weak teams at the end of the year. On the other hand, Baltimore is a defense monster, has beaten every playoff team in the regular season, went undefeated in a conference with three playoff teams and seems balanced all the way around.
I think GB is a good team, but their defense is suspect to the point that if Rogers has an off game, they will go down. New Orleans just look like a wrecking ball right now and I think not having a bi-week will keep them focused.