Split the thread to preserve the grimdark purity.
Anyway, nowadays I typically play through the evil paths if possible in games (or what exists of them) since I don't really have time to do an evil and good playthrough and I figure most are going to do the good playthrough anyway so I can find out what I missed from someone else.
Still even then, I'm probably never maximizing the evil since I'm probably still treating followers decently because they're useful in a fight or other reasons. Or at least keeping them around as long as possible before they leave because I'm being too much of a dick to everyone else.