I've always liked Taravangian because he's an amazing utilitarian villain, and I've always kind of hoped he'd succeed in some way in making the world a better place, even if the narrative whoops his ass and forces some "journey before destination" nuance into his philosophy. When he became Odium at the end of RoW I was really hoping he'd basically just end the war or something (not that I expected him to). In WaT, I could buy that he was convinced he needed to get more power so he could be the uncontested, perfect ruler.
But at the same time, he's not holding the shard of, like, benevolence, he's trying to control the infinite force of directionless divine wrath and emotion, and it's clearly warping him a little bit. I'll totally buy him getting kinda sidetracked by wanting to show-up Dalinar and Jasnah, but I'd be really disappointed if he kept getting more and more unreasonably tyrannical or aggressive.
I'm sort of hoping the shard of Honor will help him keep to his utilitarian principles and resist the influence of Odium. This is why I was surprised when the new double-shard mix was called Retribution! That seems quite malevolent!!
What do you guys think. Is Honor going to make Vargo more, well, honorable? Or just more inflexible?