Darla
I don't know vampires very well, just from the books I've read here. Just their history, weakenesses, and traits. Haven't seen much about personal stuff. And souls aren't filthy. Humanity is a gift.
You know, it's interesting.. I know you're evil. Humans have souls.. that doesn't always make them good, though. For example, there have been humans capable of creating so much suffering and genocide. Like.. Hitler. Have you met him?
Angelus?? I haven't seen him around. Besides, he goes by Angel now. I'm not sure on the details about how he becomes Angelus, but he's still a good guy. I think this is something you need to work out with Cordelia and the others. I don't make decisions, I just go where assigned and follow orders.