Bigger upset Cowboys Giants or Colts Chargers? Who has the better chance of upset next week?

I thought the giants would beat the cowboys but I thought for sure the Colts would be playing the Patriots in the AFC Championship. The chargers have a bit of a chip on there shoulder considering how they lost to the patriots last year in the playoffs, they could pull an upset if they have favorable weather in foxboro. I dont see the giants beating the packers... but i didnt see the chargers beating the colts.