17. Quinton "Rampage" Jackson

Handle: @Rampage4real
Followers: 272,012
One of MMA's biggest shit talkers just loves to get at opponents (and potential ones) over Twitter. Sometimes it's reckless tweets like the one above, other times it's hilarious Photoshopped twitpics like this one. Rampage is definitely one of the fighters to go to when you're looking for a bit of MMA drama.