I have the 5th pick in one draft and the 6th in one draft, who would you draft barber, portis, steven jackson?

don't want to draft brady, i believe too early in the draft but if i was 7,8, or 9th i would. I believe in drafting a 300+ carry back first as there will not be many of them this year. But i need help in helping me sway my decision. I would rather have jackson just signed, but O line is banged up and bulger is banged up too. Don't know if jackson is in football shape. Love portis but don't know about the new Zorn's system but a true workhorse. As for barber a true Touchdown machine. But will split time with Felix jones to keep barber fresh.. thanks for looking any detailed comments would be greatly appreciated.