Code Geass is my favorite and for good reason. It combined an amazing MC with great supporting characters, tons of feels, amazing OP's and ED's not to mention amazing action as well. It grouped together just about everything that an anime could excel at and did excel at that stuff.
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.