Georges "Rush" St. Pierre. Indeed, a force to be reckoned with. This frenchman is nothing shy of incredible and his talents are simply phenomenal, unquestionably. Thiago Alves was his biggest challenge in the Octagon thus far according to St. Pierre. Already considered as, but is on his way to be, the best pound for pound fighter in the world. St. Pierre has defended three title shots and succeeded in keeping his welterweight belt around his waste. Still, this powerhouse has many challenges yet to come.
Link: St-Pierre, Lesnar reign supreme at UFC 100