I'm going with one of the obvious choices which is Bryan who I feel deserves and is long overdue for a lengthy WWE title run, I think at this stage Mark Henry who would've been my other choice is more suited for a short transitional run just based off his history of injuries the past couple years alone that has stalled his heel main event pushes, I don't think you can confidently trust him to stay healthy for an extended period of time...
I will say one thing though, it's a shame that we didn't get a Mark Henry "Hall Of Pain" run about 10 years ago back in 03'-04' when he was much younger and aligned with Teddy Long, and he had other convincing monsters like Batista,Lesnar,Goldberg to have main event programs with, not to mention faces like Eddie,Angle,Benoit were still around to make him look even better, I think about that from time to time, although he's been under contract with WWE for 17 years, a lot of his prime years like 00'-03' when he could've been making an impact and cementing his legacy as one of the goat big men in wrestling he was away doing the strongman competitions among other things and when he was around he wasn't put into situations to do anything significant, so it kinda gives u the feeling of a lot of missed opportunity with Henry