If you are think non high pitch I'd go with a guy or Luka. Gumi should be fine as long as there isn't anything too high..then she sounds like a dying rat. Some of my favorite songs from them are: Just Be Friends: Luka Sakura Graffiti: Luka No Logic: Luka Uninstall: Kaito Butterfly On Your Right Shoulder: Len (and Rin) Joker: Gapuko Bad Apple!
: Gumi My Love Will Definitely Soar: Gumi.
http://www.youtube.com/watch?v=SMP13P5uK... Hastune Miku http://www.youtube.com/watch?v=u_gBSWE_K... Len and rin http://www.youtube.com/watch?v=rFHWW8Puo... http://www.youtube.com/watch?v=8_Vm6x16nAE&feature=related (my personal favorite) :D I think everybody has to like Len when they see him :D also Miku http://www.youtube.com/watch?v=rvQ-SZgdVrs&feature=related http://www.youtube.com/watch?v=s0JPpiVNfN4&feature=related (also one of my favorites) Hope these helped :D.
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.