No need to do it in a specific order. I always go for Minthara first and smite her over the head. Next I have a nice chat with Gut, get everybody inside her room, close the door and smack her real hard. Lastely I have a nice chat with the spiders, just to make sure they don't aggro, go into Dror's room get everybody in the back area of the room or on the beams and call the cavalerie (the Orgres). Idea is to let them kill each other.
