It is often hard for me to describe what I think is “most attractive” on another person. It isn’t ideal for me to narrow someone’s attractiveness based upon their features. Now, I’m not going to go into ” they have good personalities” thing because that’s a whole other subject. I’m talking strictly physical appearance.
I like how the features of a person work together with all their different features. I’ve heard people say “I don’t like big noses.” But singling out any one feature is kind of odd. A pair of eyes isn’t going to be attractive to me. The face on which those pair of eyes are placed is going to be attractive to me. I think perhaps the only exception to this (for me) are lips. But even then, the lips accompanied by teeth and tongue, are what is attractive to me, so that’s still not a single feature.
All in all, I don’t have a “single most favorite physical feature”.