User blog comment:SethHeartphilia/Whos stronger Erza or Mirajane/@comment-24446496-20140424024349

I'd say Mirajane. She possess Take-Over magic consist of demonic spells. She may possess only 3 while Erza got over 100 armors, but keep in mind that there are more demon Take-Overs than we know and there's no telling how powerful Mira is with them.