I don't know what you're talking about- haven't done the quest line, so don't spoil me please.
A true Nord wouldn't want to become Hircine's [censored].
Sorry. People have said way more about the quest than I did, but NP. And I judged from your post count that you've certainly seen more about that quest by now.

Oh, I'm curing it before end of game. I don't care for the Daedra...love their hearts for my gear though.

Yes. You can use Fury or Frenzy to murder most of them (sneak while you cast the spell), and the higher level ones have dialogue options to provoke them into assaulting you. Self-defense doesn't count as "murder". I finished the DB questline with 0 murders in my stats, but I did get the obligatory scripted bounty.
No murder stats, but bounty...interesting. Thanks for the info. FWIW I will do DB stuff on an Assassin-type later, but on my Nord I'm trying to be noble - it's difficult when I keep getting tricked into evil-ish quests.
