RB Help

[avslpfan81085]

I'm in an 8 team PPR league: 1 pt per 20 yards, 6 points per TD and 1 point per catch. I don't have any stellar RBs this week and I'm stuck between picking two of the following:

Shonn Greene (NYJ) vs. SD
Jonathan Stewart (CAR) vs. WAS
Ryan Torain (WAS) vs. CAR
Jackie Battle (KC) vs. OAK

I currently have Torain and Stewart as my starters. Which two would you pick?