Personality wise, intelligence, a sense of humor, and kindheartedness. You have those three and you're pretty much instantly in my good graces.
Physically, I'm not really picky...beautiful eyes and hair I think are I think fall into the pure "blessing" category.
Strictly speaking to sex appeal, I'm not overly hard to please...lol I'm a twenty year old male.

You figure that part out.

I tend to favor personality over raw physical appearance, though I don't deny the importance of the latter. You could be a Greek goddess, but if you're awful to be around, I won't be. Simple.