feck me, this game is so good. The side quests induce so well - material is incredible in all facets. Blows other RPGs to shreds. Either I'm playing at a pace too quick, or I'm just playing way more than you lot are. Either way, I'll post my thoughts. I'm sure you when you guys hit these side quests you'll agree. Read on if you're somewhat far into the game with the side quests (starting from Crows Perch and ending in Novigrad area).
The Bloody Baron's quest is ridiculous. Probably my favourite so far. The fact is he is such a nuanced character; simplicity would reduce him to scum but he is thrown thrown a shred of mourn and redemption, with regards to all that has happened, and this all lays on a very difficult moral dilemma that you choose in an alternate side quest, with the trapped spirit in the tree. The way this one concluded was so moving, I didn't expect it at all and it really, really hit me.
Then you have the 'A Towerfull of Mice' quest, which is met with a real macabre backdrop, and ends in such a grim tone. That kiss, man.
Oh, and then you have the quest with Dandelion/Priscilla. Which starts with a very upbeat, regular RPG-like mundane task of helping your dopey idiot of a friend sort out his Cabaret show but then transforms into a morbid hunt of a despicable serial killer, whose killings were flat out cold, even by this games standard. This quest also had a sick irony to it, it starts with Priscilla singing a beautiful tale (which, judging by the lyrics I assume was about Yen and Geralt) to turn culminating in her potentially never singing again.
It looks set to sweep GOTY for me. Perhaps Arkham Knight has the capacity to best it, but I can't see that happening.
Bloodborne will also be in with a big shout. That game is also incredible.