Should I start Tim Hightower (vs. Det), Reggie Bush (vs. Dal), or Steve Smith (Car.) in my RB/WR slot?

Bush is a tremendous upside for TD's this weekend to culminate drives....Smith will get extra attention this weekend and not get loose for big plays and Hightower - while a good play, even with sharing a workload with Wells - does not have the potential Bush gives you for quick points based on hitting paydirt.