Eve Online. Giant sandbox, plenty of PvP. Go good, go bad.

Save the galaxy or be the pirate.

As for my normal gaming preferences. I like reasonable challenges. I don't like exploiting game mechanics that are obviously flawed.

As for good vs evil.
It depends on the game. Strategy games I err on the pragmatic. Games without rails the good. Games with Karma or the Darkside. Or Chaos I normally go Good first and replay as a Bad guy the second time off I can stomach it. Much prefer a complex antihero character to a simple one dimensional hero... I prefer iron man over CPT spangles