#1 Edge
It was in 2011 when the then World Champion Edge was forced to retire from in-ring competition due to an unfortunate neck injury, with reports indicating that one bad bump could've led to some form of paralysis.
After nearly nine years, the Rated-R Superstar proved that the saying of "never say never in this business" is true, as he made a surprise return to the ring earlier this year at the Royal Rumble and went on to be in the final three of the men's match.
With him currently being involved in a highly-personal rivalry with the Apex Predator, Randy Orton, the two are all set to take on each other at WrestleMania 36.
But what next? What after he's done with Orton and WrestleMania? Will he become a full-time competitor, wrestling day in and day out? Well, that's highly unlikely. With the reports of him signing a deal for multiple years, Edge is likely to play the role of a part-timer, coming back for matches on the big PPVs.
Who would you want to see him go up against after Orton?