I ended going with rogue as well. At normal difficulty, I don't think it really mattered. I went high resolve and perception to pump up his deflection as much as possible. I also have Eder and a custom paladin to do most of the tanking.
With the Grieving Mother always providing a flanking bonus, I can pretty safely just go one on one with a target ,especially with a priest to provide healing just in case.
I've gone with a single handed rapier and my second set is with a pistol, which is what I open up battles with. I shoot once, let my tanks engage and then charge anyone that's kin