User blog comment:MarineroLelouch/Power Ranking and Classes./@comment-93.232.255.51-20140218135727/@comment-7418318-20140218140506

Angel canonically being the strongest living female? Where did you ever read that?

Bacchus used to be in equal terms with Erza when they were having more or less friendly sparring. But that was before Erza had Second Origin unlocked and Erza only ever shows her full power when her friends are at stake, so I doubt she was going all out against Bacchus.

And that Aquarius left without fighting, while absolutely true, isn't much of an argument, since Scorpio left along with her. And if you say that the plot of part of their powers, then you'd need to include the lack of reliability of Aquarius as a lessening factor into Lucy's power too.