#1 Reigns has the look.

Speaking of things that The WWE Universe can't deny, it is absolutely impossible to say that Roman Reigns doesn't have the look of a top guy in The WWE. Not only is that evident by his jet black hair, all black attire, and his sometimes heelish attitude, but also by his size, his speed and his ability to go long amounts of time uninjured.
If nothing else, Roman Reigns is one of the few people in WWE that actually doesn't look out of place in a match against Brock Lesnar. With that being said and Lesnar's impending exit from WWE for awhile, it should go without saying that WWE is in need of a guy with a similar look after Lesnar's exit and Reigns in that guy.
Breaking Vince Russo and Jim Cornette update HERE.
In the end, he has the athleticism, the speed, the agility, the build and everything WWE wants in a top guy. The only person stopping that from happening is The WWE Universe, who seem to be running out of reasons for hating Reigns and will have to deal with the reality of him on top sooner or later.