Mains are in the sig- Ken, Fei Long and Cody.
Secondaries- Cammy, Guile, Abel, Vega
Tertiaries- T. Hawk, Dee Jay, Juri, El Fuerte, Sakura, Ibuki
Anyone else either comes up when I spin the Random reels or try something new.
As for females in fighters, I use them a lot. Cammy was my main in SF2 and A3, but I just don't use her as well in SF4. Likewise for Sakura and Ibuki, I just used them better in Alpha and 3, respectively. Juri's fun to use, but still working on it.
In Tekken, I almost exclusively use women, since I like Julia/Michelle and Asuka/Jun the most.
Soul Calibur, I use Cassandra and Talim. Sometimes Tira and Sophitia.
KoF, I'm more male-centric, due to Terry, K', and Iori. But I always use Blue Mary when I can. I like Leona and Yuri, too. I HATE Mai, King, and Athena, though. Angel was cool, but only in like one game, and I liked that girl with the yo-yos.