#1 Elias

Back in 2018, Elias was becoming a phenomenon in WWE. He constantly rose in popularity, with entire audiences shouting "Walk with Elias" during his promos. He was a master at drawing heat from fans. All it took was a few words in song and insults at the city in question.
However, WWE mistook that popularity for longing to see Elias as a babyface. He simply did not work as a good guy, eventually returning as a heel after only a few months. He was brilliant, singing some inventive songs and gaining heat every single time. Elias' charisma kept him prominent until he got injured and returned as a good guy.
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It was an ill-fated move that remained questionable even until he was struck down with another injury recently. His act revolved around playing the guitar and interacting with crowds by giving them the opportunity to boo him, before getting his comeuppance or some heat against the interrupting babyface.
It was a tried and tested concept that worked very well. Elias, along with the previously mentioned Kevin Owens was booed for around 6 minutes straight in October 2018, showing how well the act could go. The Drifter really needs to return to WWE as a guitar-playing heel again. That is what he's best at.
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