Yes, it's terribly simple. The good guys are always stalwart and true, the bad guys are easily distinguished by their pointy horns or black hats, and, uh, we always defeat them and save the day. No one ever dies, and everybody lives happily ever after.
Giles ,'Conversations with Dead People'
Spoilage Lite: Angel
[NAFDA] The place for casting and other vague spoilers, for those who merely want to wade, not drown, in the spoiler sea. Casting spoilers are okay, as are non-plot-point specific spoilers (like, "Tim says the theme of Season 4 is ____"). White-fonting is always appreciated.