#1: The Rock (Flex Kavanaugh)

The name 'The Rock', is great, and tells you a lot about the man himself.
Much like a lump of granite, the Brahma Bull was sturdy and tough in the ring, and could easily crush his opponents.
Did you know a top WWE Superstar just wrestled outside the company? More details HERE
The name Flex Kavana, just can't compare.
To be fair to the Great One, the Flex name came about as the future WWE Champion didn't want to live off his family's name, though things changed when he joined the World Wrestling Federation.
Debuting at the 1996 Survivor Series, Flex became Rocky Maivia, a portmantaue of Rocky Johnson (Rock's father), and Peter Maivia (his grandfather).
It wouldn't be until the People's Champion turned heel in 1997 that the Rocky name would be shortened to The Rock, as the career of one of the greatest stars in wrestling started to kick off.