I'll agree with WonderNurse about Clive Owen. Yummy... But generally I like the Emo guys. Kinda skinny, tallish, but toned upper body. Muscles are a turn off for me. I can't stand a guy with oversized muscles (like Vin Deisal for example). I guess I tend to go for darker hair and lighter eyes (like Jake Gyllenhaal, Tobey Maguire types). Jude Law would be yummy as well if it weren't for that whole diddling the nanny thing (lol). And bald/shaved heads are a no no. I'm not into hairy chests either. I get an immediate "Yick!" reaction to that. Don't know why. But anyway, all these things are nothing without a great sense of humor and an intelligent wit. Ooh yeah!
Oh and to RockChick and Holly: I agree with you about hands. I tend to like long, slender, squarish hands. And is it just me, or are forearms really sexy as well? And here in the States that little bit of hair on the tummy leading down is sometimes called a "happy trail". LOL!
How about a woman who is (not Amazonian) strong both physically and mentally. A woman who will not be intimidated. a woman who has and demonstrates confidance and intelligance. A woman who can be passionate, adventureous, gentle and/or substantive when needed (maybe even all at once). I could go on and on for there are many implied qualities in a list of attributes. After thinking about it further, I suppose one of the most important would be the ability to Love and be Loved.