Questing, looting and experience points. In general, it doesn't pay to argue for both sides, unless you notice it having to do with a specific trait you want for one of your chars. If that's the case, save before the rock-paper-scissors game and reload if the outcome was undesireable.
Those arguments really can get you in trouble. :P Then again, it's just a bit of content. You should be able to power through without the xp and loot.
