Jack-Hammer
YOU WILL RESPECT MY AUTHORITAH!!!!
I'm not going to lie that Reigns is the most articulate person out there and half as charismatic as The Rock or John F. Kennedy or Martin Luther King, Jr. Not even a quarter. By charisma, I mostly mean something magnetic about him- physically- a combination of gravity, intensity, and muscles/looks.
You're way too hung up on the guy's looks. It's the best thing he has going for him but I don't get this "magnetic", "gravity, intensity" thing about him.
Someone with magnetism, someone who can capture your attention and hold it by sheer force of personality has nothing to do with how much muscle someone has or how handsome their face is. Being nice to look at and making people care about who you are, what you're about, what you're involved with, etc. is something far deeper. In pro wrestling, look at guys like Ric Flair, Hulk Hogan, Dusty Rhodes, Arn Anderson, Roddy Piper, Bray Wyatt, Randy Savage, CM Punk and a number of others who held others with what they were able to express verbally and through body language, at times. These guys certainly weren't/aren't the prettiest guys around; if a 30 year old Randy Savage debuted today in WWE, his look/ring gear would make you think his gimmick was as a grand marshal of gay pride parades. In real life, look at how charismatically magnetic Charles Manson was, all 5'2" 140 lbs. of him.
Maybe you get some sort of feeling from Reigns, but I just don't see it. What I see, for the most part, is a one dimensional guy standing around looking pretty, buffed up and guys like that are and have been a dime a dozen in wrestling.