Alrik
I'm not that much into setting itself, I just need the ability to roleplay dark side. Jade Empire gave this posibility in a pretty much fairy-tale good-alignment setting. Perhaps you didnt noticed, but there is only 3 modern cRPGs that actually have substantial, balanced and very well written "dark path" - two KOTORs and to a lesser extent Jade Empire. Thats it. BG 2, while my fav game and having great variety of choices, still slightly biased in this matter - you could turn Viconia from evil but you could not turn Aerie to evil for example. Witcher is a gray moral RPG, so while its better than Drakensang its still not enough for me. And as for "good" RPGs and their variety, flixerflax said enough about this.