I say Malcom Floyd with a bounceback game in sunny San Diego, Felix Jones because the Cowboys must have someone in their organization that can tell Jerry Jones to give the kid the ball with all that talent, and begrudgingly Fred Taylor with the third spot.
Jacoby Jones is the #3 (for now), and Crabtree is coming off a terrible game vs the seahawks, to have a bounceback game... vs. the saints!? I don't see it happening this week, and not for lack of Crabtree's talent. I don't think he has the focus to rebound that easily.
Fred Taylor isn't a stud, and the Jets defense is full of studs. But two departures (Jenkins on the Jets D-line and Maroney from the Pats RB stable) mean that he's at least going to get a few points, which is a better guarantee than you'll get from Crabtree.
Good luck with whichever way you go, I'm not convinced there's a clear winner here for your third spot, so go with your gut!