As Memphis mentioned. I think its all about how you define charisma. There's more to it than just confidence. There has a to be a certain draw there that pulls people to a persons character. Just as with many things today there are a lot of messages lost because of the opinion of the source. It's like people wearing big vagina costumes and hats in the US telling us that we should respect women, take them seriously and pay them equal salaries. The message is totally clouded by the presentation. This is the problem I have with Wilder. His brash persona, poor sportsmanship displays and in ring antics make it hard to take him seriously or really advocate for him being an ambassador of the sport (not that he wants to be nominated). Disrespect of his opponents and the lack of honor to learn his craft (he can at least stop swinging across his own body with those door knocker punches) detract from any earnest backing the guy has from coming from his journey from humble beginnings to support his daughter with a debilitating condition. Now no one says he has to do it the way I or anyone else likes. Hes free to do what he wants, opinions be damned. For me, its at least partly why I can't call his appeal charismatic as much as attribute it to the train wreck effect.

Joshua on the other hand is rather vanilla, no frills. In many way just like Lennox remained low key, he tends to fly under the radar. Is that charismatic? No not really. But if you're taking yourself seriously, your craft seriously and are cognizant of the effect you have on the people around you and the sport as a whole... People can find reasons to like you for at least not rocking the boat just for the sake of making waves. Is he the heir apparent people are hyping him to be? That remains to be seen but slow and steady wins the race as they say. For me the smiling gracious winner does more for ones image than all the asinine self promoting and screaming the other guy does. So he may not be the show stopper many want to see yet, but he has an honest shot at it as long as he can remain dominant in the ring. Even Lennox benefited from that.

People want to see the bad guy get punished more than they like to the good guy get rewarded... it doesn't amount to charisma. Charisma emanates from within the individual not from the situation. Just like the saying about who a person is, not being defines by what happens to them but how they deal with it.