I prefer faces/eyes but then butts and lastly breasts.
What determines it – could be what you have or have not been exposed to.
Consider this, if you were a nudist (for a long time), you’d likely ignore all parts except for the face. Then the face would be your most important criterion.
If you’re not a nudist, what have you been MOST exposed to? (Actual exposure, in person). What have you been least exposed to?
According to this theory, you’re more likely going to form an ‘obsession’ about the parts you have not experienced enough.
As such I wonder if there’s a correlation with breast-fed males, vs non-breast fed – and up until what age. I know I was breast-fed.
But it’s just a theory, looking forward to other replies.