First of all, there's the magic. Sanderson always has some new form of magic to introduce us to, get us attached to, and then reveal that there's so much more to it than we could've thought. The magic form in Warbreaker is called Breath. Every person has one, but the accumulation of hundreds grants better understanding of the senses, such as perfect pitch and perfect tone and hue recognition, and the ability to awaken objects to do your bidding. The magic of Breath also has everything to do with color.
Then, there's the character development, which is something I highly value in stories. All I can tell is that they were very well-done, and I'm absolutely in love with the character of Siri.
Sanderson's stories also have the perfect mix between descriptions, inner dialogue, and dialogue. There's not too much happening, and you always get an insight in to what the characters are thinking. Also characteristic of his writing, every now and then you get a snipit of information that one of the characters may not have, that you're dying to just jump into the book so you can tell them what they need to know. He did that all through Elantris, and according to Warbreaker, he is just not one to break his personal motif.
The only problem I have with this story is the character Lightsong. He's a great character, he just goes through long periods of time being completely unbelievable to me. There are moments when I think, "Yes! That's how you should be!" But then he just reverts to his old self. Then again, maybe I just can't really relate to this character's way of speaking. He confuses me to no end, like he confuses everyone he actually speaks to in the book.. I suppose he just irritates me more than anything.
I can't wait to read Way of Kings, but I'm going to have to. I've got several other books I need to read first, and it's almost 1000 pages. I have a hard time reading his 600-page books as it is. I'm probably going to have to wait for this summer to be able to focus that much attention on a single book.
My rating: 9.5/10