I asked this a few years ago, but the site has grown since then so I figured I'd ask again.
I love villains, and when I say villains, I really mean antagonists. No, those are not always the same, a villain of a story is the bad guy, but there are stories where they are the protagonists. An antagonist is a character who the writer created so that the protagonist could have an opponent of some sort, regardless of whether he is a good guy or a bad guy.
I've always been very interested in studying fictional villains, who are essentially created so that the reader can hate someone and then be glad when that character loses in some way or another, and even when the writers don't do that and make their villains very likable, but still manage to get people happy when they see said likeable character meet his demise. There are just some characters we love to hate.
With that out of the way, I wanted to know what the best villains are from CYS, what stories they were in and why you consider them to be so good?