I love nice eyes. I go for toned but slender guys, not so bothered about shade of skin, just good skin. And hands, I love hands....arms and hands have to be just right. Arms can't be overly flabby or overly muscular, slender and toned are the watchwords...but the hands cant be too effeminate. Need some masculine strongness there. I love the curve of the wrist....I dunno, I love hands.
Oh, and personality.
They need to have a good hands on approach. (bad joke)
Chaos