I don't think gender really matters. Bit, but most other female gm:s I met weren't that good. One was inexiperienced with rules, other was terrible drama-queen and "novelist", one was crazy, two other, fine. I've met at cons some better ones. I've met male gm:s who are better and quite some who were worse.
I have always played in groups where everyone was gm. Not always for that group though, and some more often than some.
Nowdays when my groups are smaller and I don't play with so many people I prefer to play games I like. Currently my 2 main gm:s are male. I run games for both of them, so they have female gm.
I prefer playing and gm:ing rather dark games. I can't do it with all these wussies. I sorta miss my "one-shot games like horror action movies" gm. Then again I can live with my current group. There are other medias to look for those things I fancy.
I am not really bothered by any game plots, except boring ones. I woudn't really like "gladiator" over the top style, or "seven" thriller torture scenarios. Excessive torture of pc:s is kinda bad social form. Very few people like excessive losing games. I think that despite all the "




" pc:s should be able to be heroes/anti-heroes of the game rather than victims. Or at lest victim status should be fairly temporaly unless it equals death. And I dont think gm should for player to play their "death".
I am lot less selfish these days. I can play nice/dm games with themes my players prefer.
I rather like water bob:s gaming stories.