You know, I dont really have a favorite.... so I'm just gonna post a pic of one of the WORST, MOST ANNOYING, DISPICABLE, EVIL CHARACTERS IN THE ENTIRE HISTORY OF ALL THE WORLD.... (bubududuuuuummmm) Jeez I hate this person......
Seriously a great villian she has a dark past and has a crazy damn motive and when she finds out that she finally lost shes so helpless and scared to the point where when you used to hate her guts it all turns to savage pity.
My Favorite Female Villian well that has to be Lust-san from FMA..but since she's taken my next favorite would be Sloth from the original FMA anime series.