User blog comment:Miskos3/Fairy Tail Episode 255: Tartaros arc: Steel, Review/@comment-5303512-20151017142819/@comment-7418318-20151017155948

The difference is the target audience, which is hardly surprising considering how the two genres are specifically made to appeal to either women or men.

As far as I know shoujou stories focus far more on romance and less on violence, so their readers would probably favour similar things.