The others at 155 are wide swingers and hittable, Dustin has decent hands but has zero footwork which Charles showed when using straight punches drops them. Then Islam showed Charles also is easy to crack and he drops like a fly when it gets hard. I would put my money on Volk to break them down with Cardio and output. None of them are going to do anything on the ground to him. He has more chance of ground and pounding them in the later rounds.