Sorry, my expertise is on Yuri Manga. I don't even read the 3 you listed.
code geass - get a 15 minute lecture of how bad it is every time one of my friends comes over...she loaths this series and intends to make me hate it through her hate XD
death note - way too much emo in one place
akumetsu - never heard of it
I'm not obsessed with Cute things......I just like them better then everything else <3
Code Geass was actually amazing you should try reading it. Death Note was my first serious manga so I liked that part. And Akumetsu I just finished reading 2 minutes ago literally. It was a great read and has lots of twists and turns to keep you watchin.
