I like Charles. You're nitpicking between 2 great options, but MJD has the giant question mark. If you can get him to package another decent option, then I'd move on it.
12 Team PPR
1 QB, 2 RB, 2 WR, 1 TE, 1 Flex (RB/WR/TE)
QB: Newton, Ponder
RB: Rice, Sproles, R. Bush, F. Jackson
WR: S. Smith (Car), Decker, Hixon
TE: Gates, Pettigrew