I will never guarantee this, but I am going with the Redskins here +800
The Vikings have allowed 42, 34, 35 in their last 3. If Washington can get a couple turnovers, I think their offense is good enough to put up 34 points.
Green Bay and New Orleans does not figure in this, and New England is against a tough Miami defense of late. I could worry a bit about the Dallas/Philly game. Carolina could be scary, but at 8-1......... I'll take Washington.