Now, I'm not one of those people. To me, John Cena knew how to work a mic. From his days rapping as "The Doctor of Thuganomics" to his current incarnation, Cena can entertain the crowd with fluent charisma and hard-hitting promos. That's a big part of why I was such a big fan of John Cena. His charisma factor was off the charts.
The same can't be said for the wrestler WWE's trying to heavily push: Roman Reigns.
Of course, Reigns is a big body Vince McMahon craves. He's an intimidating presence in the ring and fits the bill for what McMahon's looking for to head the company's roster in the future. However, his promos are boring. Aside from his "SUFFERIN' SUCCOTASH" promo, which was okay, he generally doesn't bring anything to the table other than how he's the "Big Dog" and "This Is His Yard". John Cena was able to connect with a younger audience with values of "Hustle, Loyalty, and Respect" and to "Never Give Up". Reigns will have plenty of time to develop some values (And mic skills). But at the current rate, it seems like Reigns will have a hard time with such issues.
Like Cena, Reigns is also a victim of the "Five Moves of Doom" mantra. However, today's pro wrestlers (At least in the WWE level) have become accustomed to having a limited moveset. They get locked into prototypical matches with opponents and whip out their bread and butter before either winning or losing.
Now who can make a better "face" of the WWE than Roman Reigns the way The Rock, Stone Cold, Cena, and Hogan were? One person is Triple H protégé, Seth Rollins. Rollins has some solid wrestling moves and can cut a mic promo. If COO Triple H finally gets to fully owning the company, don't be surprised if Rollins gets his call. Other superstars like AJ Styles and Bray Wyatt are always entertaining (Although Styles' age may be a problem). There are also plenty of NXT superstars that Triple H loves that could make a good company "face". But why just limit it to one person? The young crop of talent is pretty entertaining and could bring the company back to prominence.
Roman Reigns has plenty of time to make WWE fans respect him. After all, he has held every title other than the Intercontinental Championship and the Universal Championship (That should change very soon). However, I'm not really amused by Reigns and probably won't pay much attention to the WWE unless a ground-breaking superstar comes around and changes the landscape.