It should be no surprise to find Ronda Rousey at the top of this list. While it might be a little anti-climatic, she's earned her spot. Her nickname, Rowdy, is in honor of the late Roddy Piper, and he gave Rousey his blessing to use it. She was lucky enough to meet her idol before he passed, and even dedicated her final win to date in the UFC to him, in August 2015. Beyond the Roddy Piper connection, Rousey has been linked to the Shield, turned up with the Rock at WrestleMania to take out Triple H and Steph McMahon, and has been spotted at other WWE live events as well. Oh, and she named her fighting stable the Four Horsewomen, after the Four Horsemen. So she at least knows her wrestling history.