I'm constraining my choices to WWE, as I do not regularly watch TNA and do not consistently take notice of FCW, so I cannot accurately comment on Ambrose. Therefore, I'd say I am particularly enjoying Bryan and Sandow right now. Bryan's interaction with the crowd is refreshing, and Sandow's new character is very promising, illuminated by his delivery on the mic. There are others who can be relied on to consistently deliver good promos, e.g. CM Punk, Jericho, Miz, etc. Heyman and HHH are also nice added extras too. I also think Kane is underrated on the mic when he does actually have a promo.