I've had 2 GF's who were 6' tall. One, I loved her height. She was the ideal and to this day, I have a fetish for tall women. I see a 6 footer and I am intrigued to no end.
I also had a GF who was 5'-0" and she was one of the best lays I ever met. Just a little bundle of sexual energy. Though, to be honest, I prefer the tall ones myself.
It's funny cause my long term GF was about 5-6 and I lived with her for years. She had a certain size to her, height, shoulder width, etc. I got used to it. A few months after we broke up, I slept with the 6 foot ex mentioned above and I was AMAZED at the size of her. Even though she was very slim and trim, she was 6 feet tall, with size 10 or 11 feet, big hands, and very wide shoulders. I remember laying in bed with her again after years and was very conscious of just how "big" she was.
It was fucking great.