at 6'3" i often find myself envious of shorter guys who are more flexible, mobile, athletic, lighter, etc. when i first started lifting, there was this 5'6" guy at my gym who was jacked as hell... i couldn't believe my ears when he told me he was only 168-170! i'd have to be at least 240-250 in similar condition to look anything like that... and that's a lot of weight to carry around. it sucks.
being tall = being a clumsy, inelegant fuck for the most part. that's what i dislike most about it.
of course, that said, i've never once felt intimidated by a taller man so...