#1 Randy Orton
We have seen AJ Styles face Randy Orton once in one on one competition, and they teased a spot every wrestling fan has probably created in WWE 2K19. Everyone wants to see Styles go for the Phenomenal Forearm, only for Orton to catch him in the RKO. We've seen Orton hit the RKO from many different positions, including an implausible counter to Seth Rollins' Curb Stomp at Wrestle Mania 31.
Not only would this one spot sell many on this match alone, but Orton is proving that he is still very much a legend killer, and Styles is a living legend with a target on his back. Orton's current heel run has revitalized his character, making him as sadistic as he has ever been. From twisting a screwdriver in Jeff Hardy's ear, to unmasking beloved luchador Rey Mysterio, Orton cares about nothing and nobody.
A top AEW star just called one of his colleagues 'spoiled' and 'narcissistic' HERE.
All that matters to Orton is bringing down the superstars that fans have placed on pedestals, and few pedestals stand taller than the one that AJ Styles stands atop. This rivalry would not be hard to set up, Styles can simply be next on Orton's list.