I'd take Wilks over Robinson in a second, unless Devin looks really bad. Wilks is a decent situational player because his d is decent and he can penetrate. Robinson is a warm body you put in the game because Bowen can't play 48. Robinson has nothing left.
Marks is pretty worthless IMO. Even Massenburg is a better shooter, and Marks isn't the banger TMass is. Massenburg is a no-brainer. I'd take Mohammed over Marks just because on his best day Marks is barely better than Mohammed, whille Mohammed at least has a break out game or two every once in a while.