If you've ever photographed a field of acres and acres of sunflowers, you know.  They are all the same and all totally different at the same time.  Kind of like humans.  My friend and I went separate ways with cameras in hand.  Later when we compared shots... we had somehow photographed many of the same ones.  It's not unremarkable that the ones we were attracted to, were the ones that were the most different from the rest.  Think about that for a minute.