5. Rey Misterio
When it comes to former WCW talent, Rey Misterio is arguably the most successful to make the transition after the Monday Night War came to a conclusion.
A triple crown champion, Rey Misterio held literally every belt feasible during his run with the company. Rey started his career while still a teenager, eventually working his way up to being worthy to take over the mantle of Rey Misterio from his uncle, the first man to wear the mask.
Will John Cena beat Ric Flair's record? A former WCW Champion thinks so HERE
Rey's performances on Nitro were a huge highlight of the Monday Night War. His feuds with Eddie Guerrero and Juventud Guerrera were the stuff of legend. But when he made his debut with WWE, no one ever expected him to go beyond the mid-card.
Rey, of course, became one of the most popular WWE champions of all time and is still beloved and an icon to fans of Lucha Libre around the world.
Why he might be the top guy: Rey is no stranger to the limelight, and has proven himself a credible and worthy world champion. With his reputation around the world, the WWE could do a lot worse than building their show around him.
Why he might not be the top guy after all: Rey is ageing past his prime, and it's unknown just how long he plans to stay in WWE and dealing with their punishing road schedule.