User blog comment:Yuri Rozu/Kyoka and Mirajane/@comment-1153699-20160125105428

Determination and Endurance are pretty much Erza's strongest points. She continued to fight Kyoka even after the latter robbed her of her 5 senses and significantly heightened her sensitivity to pain. Mira's own Determination and Endurance are not bad, but they still don't come close to Erza's I'm afraid.

That being said, I think we should stop comparing Erza and Mira before this turns into another Mira vs Erza warzone.