The Contenders: Good Vampire vs Bad Vampire.
When: Angel: Entire TV series (Ongoing in comics)
The Battle: Sometimes the biggest monsters we face turn out to be ourselves. For the vampire known as Angel, that was definitely the case. As "Angelus" he had a fun penchant for torture, murdering young maidens and nailing puppies to doors - until his soul is restored to him via gypsy curse. Now Angel is forever tormented to not only remember all the terrible deeds he’s done, but to actually care about them. If Angel has a moment of "true" happiness, he will lose his soul and Angelus will return.
Angelus has reared his ugly head periodically and when he does, he makes it his new personal mission to torture Angel through his loved ones and to make sure his pesky conscience is never returned.
Winner: Angel … for now