1CHARLOTTE FLAIR
Source:tw.com
It is hard to make a case for anybody else than Nia and Asuka. But, if the Rumble has a championship on the line and champions enter the match, Charlotte would be a legit option to win it. She is the biggest star in that division and WWE has always been more than willing to push her. If she enters the match, Charlotte will be one of the last women standing in the ring.