The Witcher 2: Assassins of Kings Interview

Asked to name defining traits that distinguish The Witcher 2: Assassins of Kings from BioWare's Dragon Age II, executive producer Tomasz Gop points to the setting, choices, and graphics.
Tomas Gop: (That's quite easy, actually. There are a few things that I can easily find. First, we don't have a generic fantasy world. I mean [the author] Andrzej Sapkowski spent a huge part of his life doing this. It's comfortable for us. It's consistent, it's really working. Everything is kind of logical in this world, and it works out well for us. The other thing I don't really think it is possible to distinguish some of the things you're choosing between as .ood or bad' or .ood and evil.' We always like to think about when you have a choice in The Witcher, it's more like what I would actually do.

It's not black and white, and that's the most important thing. And we look better. I mean, sorry, seriously I love Bethesda, BioWare games, I play them. But, c'mon. You cannot be indifferent to that, you cannot omit the difference. We simply look better.)
PC Gamer's article includes a graphical comparison but to me that seems the least interesting of his claims. His claims on a better game world with more shades of gray is more interesting.