Benson, M Bush, J Battle - which 2?

[chefpilsy]

Non ppr league - standard scoring with points for return kicks and punts.

I am leaning towards Michael Bush since McFadden is out and Cedric Benson, but I am questioning whether to put Battle in for Benson. Tennessee hasn't been great against the run, and Miami's defense seems to be better against the run. The other option I have is JETS Joe McKnight - he's tempting to put in instead of Benson.

Any help greatly appreciated and WHIR!!