You can't go wrong with either really. They both run behind terrific OLines. You're guranteed to get plenty of carries for Deuce because the Steelers are a run oriented team. There's a possibility that the Chiefs will have to throw the ball alot more against SD because their offense has been pretty good all year. Plus SD runs the 3-4, and although I don't anticipate the Chiefs OLine to struggle against it but it could give them a few problems during the game. All in all I'd go with Deuce Staley just for the fact that he's guranteed to get plenty of touches, and that's not a given with Blaylock. Hopefully you have another good RB who can provide you with some TD points.