No fighter has ever blown up the UFC quite the way that Conor McGregor has. If he beats Jose Aldo at UFC 189 on July 11th, that hype is only going to increase. 

But as Joe Rogan points out in the below video, Conor McGregor is steamrolling every single fighter that the UFC put in front of him; so the hype is firmly based on his impressive skillset as much as his mouth. 

It'd be tough to bet against him - even with a dominant champ like Aldo.