User blog comment:EzioE311/Vampires or Werewolves?/@comment-6881629-20130613090921/@comment-172.6.60.43-20130617171851

Remember that if you have Companion's Insight from Dragonborn, then friendly fire is no longer an issue. As for Howls (not Roars), many are somewhat useless. That said, I did have difficulty choosing as well, although in the end I found Vampire Lord more beneficial, even though they have severe drawbacks as well.