Why haven't I seen this topic earlier?
In order of controversy:
I don't like Kaladin, I don't think there's a single scene in his PoV I enjoyed. He's the least interesting and and emotionally engaging PoV. I… he just doesn't work for me, I don't care about him and I'm sick of seeing the hype about him everywhere (hence: my profile). And no, I'm not a happy-rainbow-never-had-depression person. Also I think his character arc is (in terms of narrative quality) worse than other characters in SA (not that I am at the position to judge, but anyway).
I liked Shallan the most in tWoK and now after RoW, but in WoR she was boring, except flashbacks. I really liked her flashbacks. Her personas are boring too, because they aren't as interested in Cosmere lore as Shallan.
I don't have any strong emotions, or almost any emotions at all towards Moash, except secondary ones, ie emotions I have about emotions that other people will feel if his story goes this or that way. Which are strong, because people invest themselves emotionally in him, on both sides.
Harmony isn't that good. Sure, he's trying I guess, but the thing he did to Paaln (and to Wax, but mostly to her TBH) crossed the line.
Lift is actually funny. Spensa is great. Generally, teenage girls aren't all cringe.
I don't care much about Renarin's ships. I wish he had more PoVs, but romance is near the end of the list of "things I want to see Renarin doing". (Cool magic is probably on top, dealing with his insecurities in social life is second).
[RoW-related opinions redacted]
Rithmatist is actually really good.
Steelheart isn't bad, it's just very unlike Cosmere. Same for Legion.
Elantris is by far weakest of Brandon's books. It's still ok, but not very good and the only reason I'd reread it is to find more Cosmere lore in it.