I mean, Naito for me personally is the first guy that comes to mind. Those fukking belt antics were some of the most entertaining shtick I've seen in a long time. Plus obviously his matches are bettter than Miz' matches.
That's no disrespect to Miz though who I find massively entertaining in a completely different way. He was better on Smackdown but he's still the best full time promo guy they have in the E.