Cham is more of a mainstream marketable type of rapper then Ro. Plus you should know that how "big" a rapper is doesn't have anything to do with who has better spits. With that kind of logic you would have to say that Nelly would out shine both of them.
WHat I wanted to always see was Bone with the G maab/ ABN family. There is a reason that both of these groups are my favorites. They spit ill shit, great beats, and they can harmonize really well.
