This isn’t a theory, but it’s still quite good. The Ack Attack is always a good site, this list just proves that. I highly recommend you check out her site if you haven’t already.
This is her list of the Top Ten Villains on Lost. I dare you to try to guess her list before you go there. I got it wrong simple because I forgot that her number one villain was actually a villain, also I forgot about Smokey. This is why I don’t do top ten lists, I tend to omit important things.