In favor of Ronda - Nunes was the champion and had also destroyed Tate and McMann, Yair has no top 10 wins
In favor of BJ - BJ is almost a decade older so it's more expected, Ronda is supposed to be in her prime
In favor of Ronda - Ronda seemed more like a bad style matchup problem while BJ seems completely shot
I guess BJ's is a little worse in that it seems more hopeless for him.