It sounds bad, but every time I look at Slater just think jobber. His gimmick and look in my opinion is designed to just be a jobber. So if he is to be pushed (and I have nothing against it) I feel they will have to give him a complete repackage. Yet I can never see him as a world champion.
Drew is the potential of the group, we all know the speculation between his divorce and plunge from the upper midcard, but 28 is still young for a wrestler. I feel as if the Chosen One gimmick was doomed from the start, if you choose a gimmick like that, you have to follow it through no matter what, and wwe didn't. The All American Nightmare thing he said on Superstars a few years ago was decent, but I personally feel he needs a manager to help him really get over with the crowd, still feel he could be a world champion though, or atleast US or IC.
After Mohammed Hasan, I have always felt wwe are careful and almost reluctant around Indian Asian talent, so I can't see Mahal achieving much sadly. Again though I don't think he suits this gimmick, yet as said before without 3mb, these guys probably wouldn't be on tv at all, so ultimately its the best they have got at them moment.