I used to identify as bisexual, but since getting involved with the gay rights movement and learning more terms and meeting new people, I figured out I was pansexual. But I get termed as 'curious' because I've never been with anyone other than men.
I find that with men I'm attracted to personality, then looks, and with women it's looks first. DH says it might be because my brain might look at relationships with men as long term (and therefore compatibility is an issue), and women in the short term.
Androgyny and trans-persons I find depends more on the personality.
Needless to say, DH thinks it awesome... I perve more than he does on women, AND I'm a girl-geek. He never has to beg to play video games because I'm usually busy with my own lol