Egwene acted like an idiot with Rand and Tuon. Also, no reunion with her and her family? I would have loved to see that. There were hardly words between her and anyone.

How did Egwene know to watch for the light? That bugged me.

I didn't like the crystals and cracks at all. It doesn't seem intuitive that the blackness beyond the pattern would actually show as the pattern unravelled. Also, why was there so much blackness in the ground as compared to the air*? A few tendrils of blackness moved out of the cracks in the ground, but why did they need to originate there? There's nothing special about the ground.
The anti-balefire weave (and Egwene coming up with it) seems plausible to me, for many of the reasons already mentioned, but why couldn't the cracks just close? Is it because the opposite of burning something is freezing that something**, thus the ice-like crystals? She did call it the flame of Tar Valon, though. If a thread is balefired, I'd think anti-balefire would gather up all the little particles of the burned thread (the motes) and place them back together, despite the fact that it's pretty much impossible to do this in the real world when something burns. Since burning is generally regarded as irreversible, though, I can live with anti-balefire putting something else in a thread's place with the same shape, but I still don't see why it'd have to show physically, and as a crystal specifically. It could just be realized as the blackness leaving the cracks and the Sharans dropping dead.
Also, her weave having a greater effect on people who had turned to the shadow is ridiculous; a weave like that shouldn't be so unbalanced.

* I know a crack in the air doesn't seem to make sense (what would it look like from the side?), but that's because we're used to cracks in surfaces, which are 2D. The cracks in the air would have to be 3D, which is impossible to visualize. As a matter of fact, the ground cracks, and all other cracks in the pattern itself, would have to be 3D as well, since the pattern is 3-dimensional.
** I know that combustion involves the oxidization of a fuel along with the expulsion of energy, so its true opposite isn't very clear; let's not get too scientific about it. Burning something makes it hot, freezing something makes it cold, so that's that. They're opposites.

Things I liked:

• Demandred: Man, this book made me hate Demandred! The way he screwed everything up, killing Gawyn, nearly killing Galad (he did live, right?), nearly killing Lan, showing up at a terrible time with Sharan forces, being so flaming annoying as he walked around the battlefield calling for Lews Therin when eve​ryone knew he was at Shayol Ghul — Ugh! I loved how I actually hated him.
• Olver and Noal
• Talmanes: Great character.
• Great Captain Corruption: Forcing the three worldly battlefronts to become one, back at Merrilor, thus giving Mat something to do for the book, was very well thought out.
• Thom killing the Black sister: Classic, funny, and very satisfying.
• Tam teaching Rand to let go
• Rand's battle with the Dark One: RJ said he just wanted to write a good story*, but this encounter really taught an amazing lesson. To take all the bad, evil, and everything that isn't strictly happy away from people would make them inhuman. These conflicting forces are part of us. Never getting angry, not being upset, and having no obstacles or conflicts would be terrible. It'd be so weird to never get annoyed at anyone. Of course, this makes it possible for people to do terrible, terrible things, but that is the inevitable cost. The price of being human. If we want to truly exist, we must pay this price and be responsible for ourselves. I found that whole commentary within the battle absolutely beautiful.

Things I didn't like:

• Literally every single loose end: That's how I am; I don't like loose ends. I'll save the questions about them for that other, more appropriate thread.
• Rand changing bodies: I don't know how it happened. Is that a loose end, too? I decided not to include it in the above item. Anyway, even if I knew exactly how it happened, I wouldn't be satisfied. Rand's physical identity is taken away from him. The fact that RJ went into great detail about people's physical identities in the books (which I loved) makes the body change that much harder and unexpected.
• Lack of detail about the Sharans: I know there was a lot to write about, and they don't matter that much, which is why they weren't written about in detail, but that doesn't mean I have to like it. It isn't very WoT to not explain them to death.
• Lack of Fain/Mordeth/Mashadar: The fact that Fain just would not go away throughout the series led me to believe that he would be a bigger part of the Last Battle.
• Mat's personality: Sanderson overdid it. I remember Mat being more serious (even in tGS and ToM), but maybe that's my faulty memory.
• Rand not letting anyone but his three women know he lived: Really? Not even Tam and Nynaeve? Why? Then Cadsuane figures it out and his reaction to that is "lolohwell", which made me even more upset. Okay, he worries a little about her knowing, but not as much as seems reasonable.
• Bela dying: Bela should have at least taken someone with her. Imagine Moghedien is walking through the battlefield after the fight, then Bela runs up behind her, smacks her to the ground and stomps on her face.

I'm undecided on all the Light deaths. They brought such pain, but would I really rather have everyone live? I don't know...