Thomas Jones seems like the safer pick. Sproles is likely to get limited carries, and McFadden is unpredictable.
10 team H2H league, standard scoring [NFL.com] QB: A. Rogers RB: MJD, S. Jax, J. Starks, D. Murray, M. Bush WR: M. Wallace, B. Marshall, P. Harvin, M. Colston, L. Robinson TE: O. Daniels, J. Gresham DEF: Cowboys K: Sebastian Janikowski
I'd probably go with Thomas Jones. I don't like him this year and I think Washington will be the back to own in that backfield, but I don't think McFadden will get many touches because Oakland is going to get blown out.