As far as my system is concerned, I like Windows XP as it is most compatible and you should also see that which operating system runs most smoothly on your system.
You can try both but for me I liked Windows XP. Just try which one you will like.
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.