I think height alone is not the only consideration. I say it's the person's build along with height which often determines whether someone who is shorter is prefered. Someone may not necessarily prefer a shorter man, but because of his build, they may lean more towards that person compared to someone who is taller with a less appealing build.
This.
I fell in love with a guy who was about 5' 4" who had the most beautifully proportioned body. Most people said he had an "ugly" face, but I thought he was beautiful.
Not only did he have an amazing personality, but he was well-muscled... broad-shouldered... tapered waist... lovely six-pack... *sighs*
Another short man I dated was very sweet and er... skilled.
It's whatever causes you to take a second look, I suppose. Most guys that I give the double take to are either tall, dark, have long hair, etc.
Those are just my personal preferences. But I've still had fulfilling relationships with guys who had none of those things.
I've never allowed my visual preferences or the opinions of others determine whom I would date.
These more superficial things are just what draws the eye; the things you notice in passing.
You cannot know what a person is like if you've never met before, and can only judge them by sight.
Once you are able to know them, these preferences matter less, and they become the individuals you love.