I wanted to ask you guys what side you pick as the best Diablo 3 Look.

Check this image.

How should Diablo 3 Look like.

Left or Right side and why?

Personal I think the Right side should match the Diablo sort of games, Dark scary areas.

Cheers.

I'd need to test it inside the game (like be able to dynamically try out the darker and brighter themes)

At first look the right seems better, but maybe when you add the music, the story, and general feel of the game, maybe the left side would fit more.