Honestly the only AFFC POV I really didn't like was Brienne's. Not only does it suffer from the fact that she's on a mission that fails before it starts, it also felt like a weak attempt at a Dunk & Egg type story. Those stories work because they're actual adventures. Whereas Brienne just rides around looking for someone we know is hundreds of miles away. Yea it gets interesting towards the end but it was too late by then.
Not a fan of Quentyn's shit either but at least that was brief, and had a couple interesting parts. Jaime has one of my favorite POVs in the series so of course I really liked his AFFC stuff. Seeing the Brotherhood infiltrate Riverrun under his nose...shit is about to go down brehs.
Theon has the best arc between both books imo by far.

Didn't like Dany's arc in ADWD obviously, even though it does have some interesting intrigue. Whereas Barristan's chapters are waaaay better. I'm pretty sure he's getting played. I liked Tyrion's arc. IMO the thing that hurt it is that everyone assumed he was going to meet Dany, and it never happened. But I liked seeing him hit rock bottom, manipulate Aegon so easily, troll Connington, etc.
One of the biggest problems with ADWD is that Martin took the wrong message from AFFC. It's as if he said "ok you complained about no Jon/Dany/Tyrion, well here's a shit ton of their chapters are you happy now. I feel like each of them could have had 2-3 few chapters, which could have been used for other characters. I would have loved to see more Davos, although his cliff hanger is one of the few good ones. Still...AFFC revealed that his ship crashed so why not give us 1-2 more chapters? Likewise I wish we got more Jaime instead of leaving on another cliffhanger.