User blog comment:SethHeartphilia/Whos stronger Erza or Mirajane/@comment-24.185.205.129-20140101030318/@comment-1359322-20140810135456

It means nothing actually, take Laxus for example, he doesn't have any titles/nicknames yet he beat Jura and is stronger than Natsu (Salamander), Erza (Titania) and Mira (The Demon). So titles/nicknames doesn't equate to strength.