Diaz is easily the most overrated fighter in the game,a big part of that is because he has a really loud and delusional fan base. But he does sell and thats what the UFC is all about.
Diaz is not really overrated. Hes an amazing fighter who has put on more than a handful of AMAZING fights. He never has been nor ever will be the best in the world, but he will always be one of the most entertaining.