#3 Sin Cara
When Sin Cara, the first Sin Cara that is, debuted on WWE TV in 2011, expectations were high. A masked marvel, it seemed the former Mistico was going to be the next Rey Mysterio, until injuries and backstage issues led to his release.
With the mask now donned by Hunico, Sin Cara has fallen considerably from his debut hype, and is currently out with an injury.
It seems that the only reason Sin Cara is kept around is because his masks are a good piece of merchandise for young fans, though with his absence, even the youngest and newest fans are reacting to the character less and less.
Though there are rumors of a planned stable between Cara, Andrade and Rey Mysterio on RAW, we can't see the masked man of mystery being around for much longer.