What a dilemma. If I were Prince William I would have them both.
If that extremely unlikely situation ever happened, Kate would lose the style of Royal Highness and simply become Catherine, Duchess of Cambridge while Pippa would become HRH the Duchess of Cambridge and subsidiary titles.
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.