#3 Charlotte vs Ronda Rousey

If you talk about women main-eventing Wrestlemania, then this is the only match which can do so. Along with Seth Rollins, these two were the only winners coming out of the show.
Charlotte has overtaken Asuka as the most dominating female wrestler in the WWE. The loss to Carmella may have halted her run but a brand switch will bring her back on the track.
Meanwhile, Ronda Rousey gave a superb performance despite a predictable outcome. Moreover, she silenced her critics who believed she should spend more time in the Performance Centre.
While her mic-skills may still not be up to the mark, Rousey has shown improvement. With one year left for the match to happen, she would master it definitely.
As far as Charlotte is concerned, she can duplicate her championship run on Raw. This all makes the picture perfect for a Wrestlemania main event.