My height range is 5'8” and up. I'm 5'10” personally. Under 5'8”, my insecurity about height makes itself known. I can make it work if he's shorter but its a lot of effort and really not fair to the guy because he has to work that much harder. So I'm generally not even interested in guys that are noticeably shorter than me. My ideal is around 6'2” to 6'4”... most of the guys I've been the most attracted to were that height. Plus most of the guys around here are that height so that's what I'm used to.
My boyfriend is 5'11 and I am 5'0. He does think I'm short and wishes I were a little bit taller but he says he can deal with it. He teases me about it sometimes but I know he's just being playful. I think it just depends on each guys' preference.