i guess i'm not the only one to see the scientific merit of 17 point scales. check out this site to hear the informal findings of some engineers who used a 17 point scale to gauge the perceived attractiveness of their 70-some subjects. as one might expect, their scale ranged from 0 (disgustingly ugly/repulsive) to 17 (perfectly attractive/marry this person right now!).
photo: blb, "the 17 builds a dam" great smoky mountains, tennessee