Wit's Wit

IMO, the parallel triangle is Honor (Adolin), Cultivation (Shallan), Odium (Kaladin). Might be controversial, but Kaladin is nothing without passion, which reminds me of Vin's unique ties to ruin. Shallan is a force of creation, and Adolin's arc feels more and more like a battle to define honor for himself. In the end, cultivation is a better fit for honor, and I wouldn't be too surprised if there was actually a relationship triangle among the three shards, with honor and odium both having resided on the same planet that as cultivation at one point.