I have concluded, after many years of trying to figure out why I like the eclectic group of people I do, that I am attracted to hardcore individuality.
Show me a person who has the courage and enthusiasm to be comfortable being fully themselves, and that's the person I'll be drawn to. In this culture, that means I end up dating a collection of hippies, queers, gypsies, geeks and freaks (and one standup comic with the charismatic charm of a Southern TV evangelist). :P
In another time and place, I'd probably have loved the heretics, witches, shamans and fools.
Fortunately for me, most of these folks are smokin' HOT and tend to be cool with poly.