In my experience, all women are outlined to be somewhat submissive and enjoy being dominated. By no means do I suggest rough-handling =) Being taller and perhaps well-built will unquestionably make you appear more appealing to the opposite sex. I'm 5' 10" myself and have an average figure but that has never stopped me from projecting a masculine image. I tend to envelop my partner during sex so I seem larger and that works for me. The intimacy of being wrapped or protected by a male can be very enticing as well.
Also, I've heard that women deem taller men to have bigger penises. A matter of it being proportionate to the body I guess.