#8 Asuka
Possibly one of the most dangerous female competitors to ever step foot inside the squared circle, Asuka's role on the main roster has been pretty depressing, to say the least.
Her match with Charlotte at WrestleMania 34 had all the ingredients of a classic, and while both the competitors brought everything to the table, the Queen ending Asuka's undefeated streak felt like a shocker.
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In what could have been Asuka's coronation to the top of the industry as a dominant female competitor, everything went downhill for the Empress of Tomorrow after her loss at the Show of Shows.
It's pretty disappointing that Asuka has never held any women's championship on the main roster, and it definitely comes down to what Vince McMahon thinks of her.
She certainly doesn't possess the credentials on the microphone, but her personality is pretty eccentric for the company to not push her and make her feel like an afterthought.