What are you talking about??
Rousey's hype is mostly the work of the UFC marketing team.
Cyborg got where she is by knocking people's heads off.
Gina got where she is by having a 7-0 MMA record, beauty, and most importantly, by doing a tons of other work outside of MMA, such as video games, modeling, tv shows, etc.
So, in terms of MMA accomplishments, Cyborg has done the most.
In terms of mainstream popularity, Gina has achieved the most.
People outside of the MMA community don't know who Rousey is, whereas Gina is going Hollywood and is dating, Cavill, the star of the new Superman film: