#2 Asuka

No one is ready for Asuka!
Believe it or not, there was actually a time when that statement was true and she completely mowed over anyone that stood in her way. Of course, this lasted for about a year before WWE pulled the plug on her undefeated streak at WrestleMania 34, which left The Empress of Tomorrow struggling to find an identity.
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WWE even went so far as to put her up against Carmella and James Ellsworth and had her lose twice to them! Now this move was great for The Queen of Staten Island, who was just getting started on the run of her career, but it was a huge step down for Asuka compared to where she was a year ago.
With that being said, WWE seemed to rectify this by having her win The SmackDown Women's title from Becky Lynch but then canceled it out by having Charlotte Flair beat her for it a month later. Asuka then continued to struggle in the mid-card before finally teaming up with Kairi Saine and winning the women's tag team titles.
Not only was this the start of a momentous winning streak for the team, but also it resulted in an uptick in their brutality. In fact, Asuka has now attained quite the winning streak for the second time in her career and is being billed as the one Superstar that Becky Lynch has never beaten.
If nothing else, this is big for Asuka and a sign that they want to do something with her at the start of the new year. Maybe that happens at the Royal Rumble or maybe even sooner than that, but the company obviously has something big planned!