Poison River reward (light spoiler)

Above: I usually let all the werewolves chase me into one area deep in their territory then quite handily dispose of them with the Maul of Garrak, it's easier then chasing down each individual werewolf and hunting them is fun, also providing substantial xp points comparable to the mutant Minotaurs and more than an Elder Troll. If they get too far away I finish them off with the Wyrmslayer in rapid fire mode.