I'm just a big fan of heels who actually look like a complete weasel. It'll be hard to ever take him seriously as a contender given his size and look, but that's probably my favourite kind of heel; Someone who gets ahead despite not being very courageous or even capable and we're supposed to know it. He's the butt of a joke everyone gets but him.
Again, that's why I loved early Jericho so much (yeah, maybe I will marry him, shut up). Sure he was always put over as a promising athlete at the same time, but he would go all out with his heel schtick and try to worm his way out of literally everything. And then he would honestly expect us not to know what he's up to because he just thinks so damn highly of his own warped intellect. It was pathetic, funny and awesome.
Maybe I'm projecting, but that's exactly the kind of heel I see in Maddox and with some polish I think he could pull it off.