#2 Titus O'Neil
Titus O'Neil had a good thing could with Titus Worldwide but the group never broke through in the manner that it should have, in my opinion. Since then, the only thing of note that he has done at a WWE show is slipped and slid under the ring in what became known as Titus World Slide. Of course, he has been greatly involved in WWE's many CSR activities and is certainly a great human being who thrives in bringing smiles to the world at large.
As we saw during his Prime Time Players run, Titus O'Neil can definitely be entertaining and shake a hip if the situation calls for it. If it is indeed a short-lived run until Xavier Woods returns, I think that it would be fun to see Titus O'Neil come to The New Day and become the powerhouse of the group in a sense. It would give him a role on television and in many ways, get him over in a big way as a reward for all the great stuff that he has been doing.
Of course, he would be upset when Xavier Woods returns. And this could lead to a great feud between Woods and O'Neil!