I love Perfection!
Interesting article on Wonder Woman's villains (the Golden Age ones) from a blog retrospective overlooking Wonder Woman's history.
Not sure how much I agree with their analogies but some interesting stuff to read about.
The Female Furies are probably the most famous all-female villain team.
Marvel has a bunch of female villain teams like the Grapplers (which is ironically based on the Female Furies), the Femizons, the Femme Fatales, Hell's Belles, Beetle's Syndicate, and the Doom Maidens.
Batman maybe but once you get past Catwoman, Talia, Poison Ivy, and Harley I kind of struggle to think of female Bat-villains. And at least three of the aforementioned are pretty much anti-heroes these days.
I think there was female version of the Sinister Six for Spider-Man.
I can't believe I didn't think of the Female Furies, and I love that team. I guess partly it's because I only think of them as a team, and not as individual characters (like Godwatch or Villainy Inc.), but they would definitely rank as my favorite until someone does something more with Villainy Inc. or Godwatch. I've honestly never heard of any of the others, but I'll Google them.
Gaius - Thank you. I'll also Google the female Sinister Six
It has always bugged me that nobody has really put effort into establishing the Furies as individuals. There are some rare instances (Ostrander's Suicide Squad in particular), but the Furies are so damn awesome that it sucks that so few writers use them. And when they do, they're either written inconsistently (Stompa being dumb just because she's a big gal, for example) or used interchangeably. The Furies mini-series that came out a couple years ago was the biggest missed opportunity for this.
As for individuals-banding-together like Villainy Inc., the Femizons is Marvel's biggest one because it had virtually every female villain who had appeared before 1990 (with a few exceptions, like Calypso and Lorelei). The story they appear in is cheesy as hell but damned if I don't love it. Likewise, the Doom Maidens were all established female villains banded together, but it was a very short-lived team.
The female Sinister Six is Beetle's Syndicate, btw. Beetle, Lady Octopus, White Rabbit, Scorpia, Electro, and Trapstr are the members, and it's a pretty fun group in general (though I'd ditch Electro and Trapstr for other characters like Stunner or Joystick).