Dear Questioner William the Conqueror was a brute. Terror and devastation were weapons which he used to subdue subject populations. He was magnanimous, lenient even generous to those who submitted to him and acknowledged him as overlord.
But those who rose against him were systematically destroyed together with their families and lands. In short, he was a terrorist where any violent action was justified by his desire to subjugate. His opponent King Harold was a different character.
He was intelligent, educated, and caring. He was also a very good and brave soldier and he should have won at Hastings and kicked the Norman userper back into the sea. More.
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.