If we are taking physical qualities and not things along personality which is always most important, then I have to go with the eyes, no two people eyes are the same and they are just beautiful, I don't get tired at looking at them and they can't be replicated.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.