7. Conor McGregor

Conor McGregor might be a social media and trash-talking icon. But besides all the showy stuff, no one can't deny that McGregor is a top fighter. In fact, his left hand is one of the best the sport has ever witnessed. There's a reason he's the highest-paid MMA fighter of all time.

A former three-time UFC featherweight champion, Jose Aldo became the first ever UFC featherweight champion after the WEC/UFC merger. He remained undefeated for over a decade, being one of the most dominant featherweights of all time. But Aldo's quick loss against McGregor makes some fans forget just how good he really was.

9. Amanda Nunes

Amanda Nunes is the first woman to become a two-division champion (Bantamweight and Featherweight) and the third fighter in UFC history to hold titles in two different weight classes along with Conor McGregor and Daniel Cormier. Nunes is widely considered the best female MMA fighter of all time and she can back that up with her results.

Stipe Miocic was a two-time UFC heavyweight champion with next level boxing ability and advanced wrestling techniques. In 24 fights, he recorded 20 wins - 15  by knockout - and 4 losses. He took some heavy losses but then turned it around and went on to build one of the best streaks the UFC has ever seen.

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