It's rather funny that I started watching this show in the first place cause I'd read some rabid fanboy's comment on the Death Note's page stating that Code Geass was far better than DN. So I, basically, had no choice but check it out myself.
It' s true that "Raito" and "Lulu" may resemble each other a little, but their motives and personalities are utterly different. I think that Lelouch is stronger(I mean he's totally stable and sane person till the bitter end), but It doesn't mean that I like him better.
I've grown to like the characters in general, the story is quite captivating, although a bit simple. I's been already said that it's recommendable for anyone who enjoys watching strategic maсhinations and mind games.
And all the names: Japan, Britania etc are from alternative universe and setting, so don't let that spoil you the fun: it's not THE Japan, just some place with the same name and Mount Fuji.