1. He's 28 Years Old
My final point seems simple at face value, but what you've accomplished by a certain age means everything in professional wrestling. Roman Reigns is old enough to appreciate the position he's in and the gravity required to be in the spotlight. He didn't just sign up for wrestling school because he lost his job at the video rental store. That being said, he's young enough to develop into a more well-rounded Superstar. There's time for improvement on the microphone, there's ample opportunity for expanding his repertoire in the ring. He won't finish his career as That Guy From The Shield, because he has years of character development ahead of him. He's never been sidelined by injury. His is a strong, fresh body that may get injured, but for the time being is not already marred by injuries. He's not just being discovered after 3 years in developmental, and 5 years on the independent circuit. He is hot off the WWE-branded press, and he's a natural. Believe it.