I am assuming this study was for a class you are taking?! What year are you in? Graduate or undergrad?

Thinking about it again, though, perhaps it would be completely impossible because people would always find a way to differentiate between each other. People would begin to fetishize the tiniest differences between people. For example slight differences in the tone of their voice, behaviour such as dominance or aggressivity. Maybe there's no meaningful way to talk about people without some variability in attractivity built in?

Also, what is beautiful? There is a general belief that beauty is balance. There is also a belief that human beings tend to be drawn to the un-common (rare) - hence in a community were everyone is starving to death the fat women is desired. In our society were fat is pretty common, we look up at toothpicks. Also, one should make the distinction between current societal fetish and beauty. We used to think Marylin was the tops, now we might consider her fat.