the only time I take a girl's height in consideration is when she is very short or like half a foot taller than me (am 5'11 so a 6'4" girl is just too tall for me). I actually prefer girls that are almost the same height as me give or take an inch or two, but in the end it really doesn't matter. If you're anywhere between 4'10" to 6'3" I won't mind and wouldn't really even notice it, if that makes sense. I don't get why guys have such a problem with tall girls most models are around 5'10", I think it's just guys that have an ego problem who you wouldn't want anyway.
Wouldn't bother me. Since it's never bothered me I'm not sure why it doesn't. I can only assume it's because I don't feel less like a man just because a girl is taller than me. As long as she can't beat me at arm wrestling she can be 7 feet tall for all I care. ;)
I've always had a thing for tall women. I'm 6' so there aren't that many taller than me but I can't resist flirting with every one that I meet. It seems they have a problem with it; you rarely see a tall girl who's not with an even taller guy, and I never got anywhere with them.
I'm 5'10". I don't let it stop me from wearing heels when I go out. I've had some attention from guys my height and shorter, as well as taller. Different strokes for different folks - it's about preference. The guy I like now is my height :) Wearing heels should be fine - if you show that it doesn't bother you, it's likely that he'll feel more comfortable too.