I actually liked the rivalry. It isn't something you find a lot of, but where in most games I would never, unless they were sufficiently annoying, consider killing a companion in DOS II I made sure to kill the companions left behind...not because of the XP of course :P that would just be scandalous. Now I have to consider if i'm going to kill two of my other companions....and not only if, but "when". I really don't want to kill the demon girl. At least until she is free of her demon...