#4 Becky Lynch
While she may be an accidental main-event star, Becky Lynch is probably the most popular WWE Superstar in WWE right now. Her gimmick as a female version of Stone Cold Steve Austin has won over fans and there's a good reason why she main-evented WrestleMania 35 alongside Charlotte Flair and Ronda Rousey.
If AEW were to sign her, it would be a paradigm shift. But it would take a perfect storm of things to fall in place before that happened.
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#3 Seth Rollins
Seth Rollins is one of the biggest WWE Superstars in WWE. He has been a mainstay in the company for the last 8 years or so. Seth Rollins cut his teeth and learned his craft on the indies, working in places like Ring of Honor. Would he ever follow Jon Moxley to AEW? The answer is probably no.
Sure, the WWE Universe would love to see a dream match with Kenny Omega but it's not going to happen. Seth Rollins is going to be in WWE for the long run.