Not sure I would agree with you on the Yellow Tail Damsels. I had two and when I finally got rid of them, the other fish in the tank seem alot more relaxed. I have had a few people tell me that that Yellow Tails, can be more of the more agressive damsels, especially as they get bigger.
I am not a big tank of damsels period though. Chromis (blue/green/purple or Reef Blue) are school fishing and would end up being eaten. They are very laid back and dont seem to really care what is going on, althought in terms of food, they are piggish.