I personally haven't cosplayed as an Angel or Buffy character yet, but my girlfriend cosplays as Illyria (amongst other franchise characters). I do plan to pull of my best Spike though. I figure it would go well beside Illyria at the conventions we go to. 🙂 I've built Borg costumes, but now I'm working on the prosthetics for my Michael Corvin hybrid costume. That one's going to be fun! But, now I'm straying away from topic. 😉