I'm kind of amazed how many people are choosing 6'7" over 5'7". 6'7" is freakishly tall and 5'7" is only a couple inches below the average male height in the US. I'm only 5'8 and I've never worried about my height or had any issues attracting women. I can't imagine losing one inch would make that big of a difference. One of my friend's is 6'3 and he towers over basically everyone he encounters on a daily basis.
Now if the choice were between 5'3" and 6'7" I might reconsider my answer, but I don't think people realize how ridiculous being 6'7" would be if you're not an elite athlete or even athletic.