Need Roster Help

I can't decide who I should start at RB in my FFL
We start QB, 3 WR, 2 RB, TE, WR/RB, K, DEF, DL, D, DB

QB
Tony Romo
Tyler Thigpen
Carson Palmer
David Garrard

RB
Brian Westbrook
Michael Turner
Chris Johnson
Steve Slaton
Tim Hightower
M. Jones-Drew

TE
Jason Witten
Kevin Boss

WR
Chad Johnson
Eddie Royal
Anquan Boldin
Vincent Jackson
Roy Williams
Tory Holt

DEF
Philly

DL
Jon Beason

DB
Gibril Wilson

D
Jonathan Vilma
Who should I start at RB...

It's a head to head league. I am 5-5, .04 behind the league leader is scoring, so I'm putting up points, but playing everyone on the on week. I'm one of 4 players in a 10 team league over 1000 points...but yet I sit in 4th place.