Which Fighters Are Kryptonite To Other UFC Fighters?

I think Holly Holm is Ronda Rousey's kryptonite. I don't think Ronda would ever be able to beat Holly because Holly's style is perfect to beat Ronda. She can avoid her bullrush by using lateral movement and using her boxing to piece Ronda up when she goes for the clinch. Also, I don't think Ronda can take Holly down using her Judo and she's not able to outmuscle her like she did to everyone else.

Also, Rose Namajunas seems to be Joanna's kryptonite since she's beat her twice.