From what I've noticed, everyone's "type" is different.
I'm actually physically attracted to very few people, but I tend to fall for guys with somewhat unusual features, I guess. I've been told that, at least. I've know guys that rate themselves "average" at best, who I find really good looking. I definitely have a "type," but it's hard to define.
For a sexual/romantic relationship to work, physical chemistry is imperative. However, for me at least, intellect, social "presence", sense of humor, and similar interests are
far more important - not that these things have to be "perfect," just a good match the other partner. When I first met my "first love" (I know, roll your eyes if you must
) I wasn't overcome by uncontrollable lust, but after I got to know him, that changed *snicker*. It definitely wasn't because of his looks, but after getting to know him he became the most beautiful person in my world, physically and in every other way.
I have other female friends find an unbelievably wide variety of men eye candy. I have female friends who, well... like females. I know some who barely care about looks at all, as long as the dude is creative, a good person, intelligent, whatever they're looking for.
If I actually think about it, even my friends are more attractive to me because I know them. But again, as far as initial attraction, that's different for everyone. Culture, similarities to past lovers, and random quirks all influence this, I'm sure.