I blush to admit that I suffer from an extraordinary attraction to a nice butt.
In HS I even started a dating relationship with a girl for no reason other than her "perfect" back side. I remember my first encounter with her vividly to this day (it was 1965). A friend and I were doing some menial task at a Church activities building that was across the street from the all-girls Catholic HS. There was a window in the room that gave us a view of the bottom half of the girls who happened to be walking on the nearby sidewalk. Of course, we would keep our eyes peeled for anything on the sidewalk that looked "interesting."
And then we saw the perfect butt! The way she walked and the shape of the lower half of her body were spectacular. We rushed to the man-door that provided access to the sidewalk, just to see who it was that we had noticed on the sidewalk. It was a girl we both knew - she had been a cheerleader in our grade school - but had never paid any attention to. She was flawless, but not particularly pretty of face.
Within a week I had her phone number, asked her out, and had a few follow-up dates, but there was no "magic," so we painlessly parted. She never knew why this guy who had never even said hello to her despite running in the same circles for a few years suddenly wanted to be with her. She still doesn't know, I'm sure.
And I'm still a sucker for a nice butt.
Boobs? They really don't matter to me as long as they are proportional to the rest of the female's body.