Who would you start, Week 9?

I need help filling the following positions: RB,RB,WR/RB-Flex, My running backs are: Marion Barber vs. Philadelphia, Chris Johnson vs. SF, Mendenhall vs. Denver, Ahmad Bradshaw vs. San Diego. My Wide Recievers to choose from would be Devin Hester vs. Arizona or Chad Ochocinco vs. Baltimore. Do you think I should play 3 running backs or 2 RBS/ 1 WR? Thanks!