#1 Drew McIntyre
The only Superstar on this list to have multiple stints with WWE, Drew McIntyre started off proceedings on the main roster during both his runs as a heel. But for the reason of relevancy, let's focus on his current WWE tenure where he made his main roster re-debut on the RAW during the 2018 Superstar Shake-up, after being introduced as Dolph Ziggler's sidekick.
The duo then went on to win the RAW Tag Team Championships before dropping the same and eventually parting ways. McIntyre would continue to be a villainous character as he feuded with Roman Reigns and The Shield for the better part of 2019. It was only earlier this year that his fortunes in WWE saw an upstart of sorts.
Charlotte Flair to return and wrestle a CURRENT CHAMPION?
The Scotsman would win over the WWE Universe after eliminating Brock Lesnar in the Men's Royal Rumble match with a Claymore Kick before eventually going on to win the whole thing. His entire feud with The Beast Incarnate was a hit and he really endeared himself to the fans in the process.
McIntyre would eventually dethrone Lesnar at WrestleMania 36 and has since been a dominant champion on RAW.