#1 Becky Lynch
Becky Lynch is undoubtedly one of the most over superstars in WWE, both male and female, right now. The WWE Universe is going crazy over her new persona and there's no better way for WWE to cash in on that craze than to keep the spotlight on her all the time.
Although 'The Irish Lass Kicker' will have her hands filled with a title match against Asuka this Sunday, it's highly probable that 'The Man' will make an appearance in the Rumble match and also win it.
Despite the outcome of her match with 'The Empress of Tomorrow', Lynch is definitely a favorite to win this year's Rumble and face most probably Rousey at WrestleMania. WWE fans definitely won't have a problem even if Becky retains her title at Rumble, wins the Rumble match and the main event against Ronda Rousey at WrestleMania. That speaks volumes about The Man's popularity right now, which some people have compared to Stone Cold in his prime.