Ps:T is also not quite comparable because even though it is D&D it actually is a highly bastardized version of 2e D&D, with only three "classes" being represented in the game and even those classes having been considerably simplied and changed from actual 2e classes to where they really didn't mean much of anything. So it was a D&D game in which neither classes nor alignments were truly present or were extremely watered down.
Classes watered down, I can get it since there were only three. But alignement not present? I think the game had a very good system where you forged your own alignement according to your actons and also many many conversations with NPCs were alignement-dependant. It was better represented than in BG1 and 2, and that's coming from a guy that loves BG.
