#5 Roman Reigns
'The Big Dog' is the future of this business and has been handpicked by the WWE to be the face of the company. There are a lot of critical opinions on his in-ring character with the fans desperately vouching for him to turn heel. Well, the amount of heat he receives on a weekly basis is colossal, to say the least, but, it is highly unlikely that the company will ever turn him heel.
He has a solid in-ring style and continuously puts on good matches but a calculated transformation could catapult him to newer heights. Well, if you try and make Roman feel like Brock Lesnar that concentrates more on annihilation than mic work, then you could turn his career into something phenomenal. A possible guidance under the bright wings of Paul E would be legendary for 'The Big Dog' and, could make him the most marketable superstar of this generation.