Jon Jones is one of the best, if not the best UFC fighter. His fights generate money and attract attention of many people. He is te fighter that everyone believes he wins the fight but at the same time everyone wants to see him beaten. That's why Jon Jones is a double win in any way. If he loses, another fighter that beats him will automatically attract attention and will become a very valuable asset for UFC.
I agree on Jon Jones being the best pound-for-pound fighter of all time, even though I'm not his biggest fan. The only problem I have with him is that he's not very active. Dana hinted a few times that trying to get him to sign any contract is a nightmare.
As for the superstar factor, it's not as simple as beating Jones = taking over his fame and hype. To get to that status, one needs to go through many exciting fights and defeat few high=profile opponents. Currently it's hard to do as the heavyweight is one of the most boring weight classes. Apart from Jones, Aspinall and still Stipe, there's no one interesting there. Pavlovich seemed like a dark horse, but after getting KOed by Tom, the hype is gone.