I would say the eyes.

The eyes are always the first thing I look at, and if they are
perfect, I look at the rest, but I can accept any body, as long as
the eyes are perfect. Glad we have this thread, because my friends think I am crazy. When we are out walking, and notice a girl, they check out her tits and ass, while I try to see her eyes.

When we have talked to a girl and walk away I ask my friends what color eyes she had, and only I can tell. They think the breasts are brains and talk directly to them.