If you were assured a certain victory over one of the following upcoming opponents: Chicago, Green Bay or Kansas City, which one would you take?

Chicago presenting a strong rush and strong rush defense (the Raiders two greatest challenges) and one of two final chances to win a big one at home. 

Green Bay, who by defeating startle the sports world, handing them their lone defeat at Lambeau.

Kansas City, needed pay back and prevention from having our noses rubbed in being sweped.