Your favorite fictional genius?

[Drakengard]

Hum! From a book, it would Bean from Ender's shadow.
From a manga, it'd be Dr. Tenma from Pluto:

Spoiler

You must be registered for see images

Or Dr. Dunstan from Karakuri Doji Ultimo:

Spoiler

You must be registered for see images

I don't really feel like explaining why xd I'm sleepy. Maybe tomorrow xd

The first one strangely reminds me of a design from Monster.. hmm

If I had to make a top 5 list in terms of favor for this genre, it would probably be:
1. Akiyama (Liar Game)
2. Yakoya (Liar Game)
3. Light (Death Note)
4. L (Death Note)
5. Johan (Monster)

I haven't seen many of these type of manga. Still haven't seen Code Geass either so maybe one of those characters will take a spot.