I reckon I'm backing the Packers and the Eagles, although the Cowboys have a propensity for the hilarious, I could very well see Kyle Orton leading them to victory (maybe even in the clutch, perhaps?) and then everyone going "Does Romo deserve the starter's job in the playoffs??".
As for the Packers, seems like they may be taking a big risk on Rodgers but Rodgers + Lacy against an abysmal Bears defence is probably going to be good enough. Should be plenty of points.
And of course, isn't there still a convaluted Saints scenario for you to worry about el grap? Cards v 49ers could throw a spanner into the works if Brees can't get it going.