I never found Gene "hot" until I watched his reality show, actually. Physically he does nothing for me, but I find him very witty and charming. (His whole family is great, aren't they? The kids especially are so bright and un-Hollywood - they're like the anti-Osbornes.)
I don't know if he'll "clash" with Trump, exactly, but I do wonder how they're going to fit two such colossal egos in the same room. Gene is the big draw of this season for me, personally. If nothing else, I think he'll provide plenty of entertainment. If they split into teams as per usual, I hope he and Omarosa are on the same side.