Valentina could beat her in a 5 rounder, but even if Nunes gassed against Holly, what's Holly gonna do? She's not a TD artist, and doesn't hit hard, at all.
Nunes would auto pilot the 4th and 5th rounds, and still beat Holly's ass. Holly is an extremely weak striker.
Also, Nunes is the one thats a black belt in BJJ, and shes infinitely more explosive and faster than Miesha.
I could see her beating the crap out of Holly with GnP, then sinking in her patented RNC.
Holly is garbage on the ground. I think Nunes would clip her, take her down, then submit her so easily, and have Holly reinact a rock em sock em robot while getting choked out like against Miesha.