depends on what others have/want. I would shop them both (Vick & Romo), "trade you a QB for your RB - pick the one you want..." I'd also favor keeping Romo over Vick, but no one in your league need know you WANT to keep Vick. I'm betting most would target Romo over Vick in a trade.
edit your signature to show your team - may help
my question: viewtopic.php?f=18&t=497276
my team (we play Q, R, W, 3 flex, TE, K, Def - 5 bench slots)
Q: Eli & Cutler
W: Rdy White, A. Jeffrey, D. Bess, R. Meachum, J. Nelson,
R: I. Redman, M. Leshoure, B. Powell, C. Johnson (sux)
T: V Davis