The success of the Ultimate Fighter series has made the UFC the global phenomenon it is today. Millions tuned in to watch the first series back in 2005, culminate in an epic fight between two UFC hopefuls in Forrest Griffin and Stephan Bonnar. The fight saw 3.3 million viewers tune in to watch two men go at it no holds barred, in turn capturing the spirit of MMA. Little did they know just what they had started. UFC president Dana White credits the success of UFC and its standing today to the first series of a show not like anything else seen on television before. TUF to this day draws nearly half a million each episode with much more for the finale with the chance for fighters to make the step up to the big leagues to good to pass up. Fighters from around the world have made their name on TUF and some have gone on to become champions and have Hall of Fame careers. Here are the 6 most successful winners of The Ultimate Fighter.