So pretty much all small guys. Don't get me wrong, I like Ziggler and Rollins as well, but the last time that there was a guy who looked like an actual star was Batista.
WWE was about bigger than life superstars and Roman fits the criteria. His presence, look and vicious spear speak for itself. His mic work can use some work, but he'll get there eventually. When you go to an airport and see someone like Daniel Bryan, you don't think much about it. But when you see a Roman Reigns, you're like, "Damn!"
This is all just my perspective on stuff, I love my wrestling as well, but I have no reason to hate on Reigns. Most stars have a 5 moves of doom and it doesn't bother me. Will I dislike Reigns come February? I highly doubt it.