Agreed with Darjaille, the mentioned characters can be considered as "female leads", and they are in sense as the most significant/most page time/other ways notable female characters in their respective mangas. But they are not leads in a sense that Gally is. Gally really is the lead character. And wonderfull character in general too. That's why I nominated her and will vote her. None of the other characters mentioned here do not deserve the win as much her imho. Not saying that I don't like those characters, in partcilar Erza and Hilda are two of my fav shonen heroines. Just not as awesome and leading as Gally