What I mean by this is if you see someone walking into a bar/club/library/coffee shop. At what height do you think... O that guy is too tall/short for me. Feel free to include your height if you're up to it.
I'm 5ft 3 and as long as a guy wasn't shorter than me that would be fine but ideally I like guys around 6ft ish. That way I can still wear heels without worrying about being taller than him. My boyfriend is 6ft 1.
It has been my experience that a girl wants a guy at least 5" taller than herself that way she can wear at least 3" heels, and the man will still be 2" taller or more. Of course, this is relative to the height of the woman in question.