Starting lineup help, must win week!!?

simple: win i'm in, loose im out. i also need the most points possible to get a better position. I'm starting MJD and have to start either McFadden, F. Jackson, or Westbrook with him. Also at wr (we start 3) I'm starting Roddy White, and have to start M. Austin, Dez Bryant, Ben Obumanu, or Legedu Naaaaaannnnneeeeee. Who should I start and why?! Thansk for the help!