Aside from the Brandon Avalanche in part 5'ish, this was by far my favorite part. First of all are Dalinar's flashback chapters.
Why Dalinar, why!?
The battle for Kholinar was the end I expected for the entire book, and it was refreshing to have it happen in Part 3
Shallann's really got me worried now
This revel thing is pretty weird, with a capital W.
Kaladin once again turns an entire force of soldiers around and becomes their leader.
And another character from Nalthis on Roshar, very interesting, I wonder who it could be...
Poor Beard, and Sah, and Khen, and everyone else!
Elhokar, brutally murdered in the middle of swearing the first Ideal, NOOOOOOOOOOOO!! I had just started to like him!!!!!!! Why Bradon, why???????
No Kaladin, not again!!!!!
So much emotion packed into this part. Greatest Part 3 of any Sanderson book yet!