Bradford is the answer because Shaun Hill has the same bye week as P. Manning (week 7), so you can't use him as a fill in on one of the two bye weeks where you need one (week 7 and week 8). Plus, that's a fantasy eternity from now, and you can expect Stafford to be back by week 8 as well. You can also expect Bradford to improve and have higher value by then.
But personally, I'd stick with Freeman over both of these guys. Both he and Bradford have great week 7 & 8 schedules. (STL & ARI, or TB & CAR)
12 team H2H league, standard scoring, no PPR.
QB: Cutler, Kitna
RB: All Day AP, CJ2K, F.Jax, R.Brown, S. Greene, Dixon
WR: G. Jennings, Roy Williams, M. Williams (sea)
TE: J. Tamme
K: Hartley, Carpenter