#3 Would have been great: Tito Ortiz
When the Ultimate Fighting Championship transitioned from having no rounds, no rules, and no weight classes to a more 'legitimate' combat sport, they lost many of their top stars. Men like Royce Gracie didn't want to compete if he was going to be limited by the new rules.
Fortunately for UFC, they managed to find and create new stars, like Randy Couture, Chuck Lidell, and the subject of our slide, Tito Ortiz.
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The Huntington Beach Bad Boy infuriated fans and other fighters alike with his cocky attitude, but he had more than enough skill to back up his boastful words, just like Ken Shamrock, who has lost to Tito Ortiz on multiple occasions.
Ortiz was a great MMA fighter, but given his ability to work a crowd, he also could have been a great WWE Superstar. Ortiz could have been a hated heel, and his legit martial arts background would have lent him an aura of credibility.
Ortiz is a 2012 UFC Hall of Famer in his own right.