It's a well-known fact that Baldur's Gate 2 heavily favors good actions over evil ones; evil alternatives to quests, when they exist, often mean tons of lost experience if not good items. For instance, in the Copper Coronet, if you kill Hendak for Lethinan, the Beastmaster won't appear afterwards, robbing you of the Tuigan Bow (3 shots per round), plus you lose the chance the complete the Slavers quest, about 36K XP per character, although you can still go there kill everyone if you're so inclined.
So how do you play evil in Baldur's Gate 2? Do you take the evil alternatives even when they're clearly inferior? How do you handle romances? What arbitrary acts of evil (murdering, thieving etc) do you commit while staying in the bounds of acceptable reputation? What does it mean to be evil to you and how do you rationalize your actions?
I'm curious to get everyone's opinions as I'm in the early stages of an evil LP of BG2, and I usually play this game with good characters.