#2: Bayley
Bayley's time on the main roster has been unique to say the least.
Despite a strong start following her 2016 call-up, the huggable one has received stop-start pushes over the past few years.
Despite this, Bayley did make history last night when she became the first woman to hold every women's title on the main roster.
First came the RAW Women's Championship, which she captured in early 2017, followed by her Women's Tag Title win earlier this year, and finally last night's SmackDown Women's Championship win.
When you factor in the new Champ's reign as NXT Women's Champion from 2015-2016, it's obvious that Bayley is building herself a nice Hall of Fame career.
Though other women may follow in her footsteps through the coming years, there can only be one first, and that's Bayley.