A Monster Calls by Patrick Ness and Siobhan Dowd!
What can I say about this book?! It was breathtaking. Beautiful, magical and dealing with the most sensitive of subjects in an incredibly powerful way. It's an absolute must read. You can find out what I thought of it in depth in my review right here.
Not forgetting those books that just missed out!
Linger by Maggie Stiefvater
How I Live Now by Meg Rosoff
Cinder by Marissa Meyer