#3 BJ Penn - 107 days (Welterweight Champion)
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For a long time now, people have regarded BJ Penn as one of the greatest fighters in UFC history. In truth, they're not too far off at all as the guy has shown over and over throughout the course of his career that he is able to reinvent his game in ways that nobody had ever seen before.
So in short, he was one of the most loved champions in all of MMA.
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The title win came at UFC 46 against Matt Hughes back in January 2004, however, the party wouldn't last all too long.
Penn was stripped of the Welterweight Championship upon deciding to leave for K-1. It was an interesting decision at the time, to say the least, but most people knew in their hearts that he'd be back in the UFC one day - which thankfully he was.
Onto a man that few would've heard of.
