Turning the Tables...

Berkhart, I'm suprised I never saw this post before. I had a sketched out synopsis of similar idea, only with a different setting.
If memory serves correct, it was set on a world where there were only a few superheros. Mostly a Justice League and a few supervillians, and UltraWoman, or "Kathy", was the "superman" of that world - the leader of the JLA, most powerful hero on earth, etc but instead of being a mild mannered reporter by profession, Kathy was also the world's most present supermodel. I guess I always loved the joke of no one able to tell Clark was superman because of a simple pair of glasses, and I figured I could get away with it here - UltraWoman has her hair pulled back and Kathy leaves it down - easy enough. Anyway, she gets the highest advertisement contracts and magazine layouts, dates the most attractive and high profiling men, and saves the world from aliens, villains, monsters and whatnot as well.

The part that relates is "Shonna" - another model who is insanely jealous of Kathy's success and blames her shortcomings and lack of modeling opportunities on Kathy. At some point, Shonna somehow gains Kathy's superpowers, also revealing her as UltraWoman. This is why I think it always remained unfinished because I could never decide whether Shonna would:

(a) decide to take everything that every was Kathy's: use her superpowers (and probably augmented looks) to become even more rich and famous, steal Kathy's boytoys, and take her place as the leader of the Justice League, while making sure Kathy has a front-row view of watching her life be taken apart. Kind of the ending of Marknew's "The Super One".

(b) go on a rampage and dismantle the Justice League, destroy all of Kathy's houses, success, relationships, etc and then finally set her sights on killing Kathy and the rest of the story is perhaps Kathy on the run and/or trying to get her powers back.

One of the scenarios that I've really been thinking of lately is a normal, unpowered villainess going up against her arch uber girl rival. After years of being beaten and humiliated, somehow during their current confrontation, the bad girl gains all of her opponent's powers.

I love imagining what the newly created villainess and suddenly depowered heroine's reactions would be to their changed statuses. Just the thought of the super bad girl getting some payback on her enemy, not too mention the world, gives me goose bumps!