Meh. What the hell is good and evil anyway? When I played Oblivion I never for example thought deadra was inherently evil. It disturbed me when people (out of game) said they were the evil and the Imperials were the good ones (IMO, the Imperials were pretty !@#$% up too). And some of the dark brotherhood quests could be considered non-bad depending on your way of thinking. Assassinate the guy who murdered a woman for example. The Thieves guild was pretty much take from the rich give to the poor; could be considered both bad and good, just like everything else.
To be honest I hate all these good-evil dualism games out there. And it's a frequent element in RPGs... truly sucks. Both Oblivion and Gothic 3 showed at least that both sides were no naturally or objectively good or evil (in Oblivion, some in-game mage scholars said that not all deadra was the same, and not all inherently evil, and Gothic 3 descriptions said that Orcs were not supposed to be considered evil as humans were considered good). That new game, Two Worlds or what it is called, it another thing. I believe it was based on the good-evil dualism, which I don't like.
If you add an option "I don't care; I play as I myself believe is right or wrong" I would vote that.