They're totally different, in the sense that they're boring. The debut and 2nd release is pretty decent though.
They are nothing like Green Day. The music is deeper and more harmonic adn the songs link from one to the other and tell a complete story. If you like Dark Side be sure to check out Wish You Were Here.
BTW the first time I heard Another Brick In The Wall part 2 I was hooked.
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.