Sammy Morris vs Correll Buckhalter?

I got Morris with my last pick in the draft. I know both of the RB's are in a huge backfield committee, but it looks like Buckhalter is going to be the starter (for now). Since both are in a committee, who would be best to have on my team? My other RB's are LT, Larry Johnson, Julius Jones, and Darren McFadden.