A quick note on 2013 Hugo nominations

Nominating ballots for the 2013 Hugo Awards are due on March 10, so I'm starting to think about which books I'm going to put forward. I've managed (largely by accident) to read seven eligible works so far:

• Railsea by China Mieville
• Dinocalypse Now by Chuck Wendig
• A Confusion of Princes by Garth Nix
• The Drowning Girl by Caitlin R. Kiernan
• Redshirts by John Scalzi
• Jack Glass by Adam Roberts
• The Games by Ted Kosmatka

The Drowning Girl and Jack Glass are definitely on my ballot, and Railsea is highly likely. I absolutely adored Dinocalypse Now, but like Leviathan Wakes last year, I just don't think I can bring myself to nominate it.

So what am I missing? I've probably got time to squeeze in another two or three books before the deadline. What should they be?

I'm currently reading Blue Remembered Earth by Alastair Reynolds, so I've got that one covered. I'm going to skip 2312 by Kim Stanley Robinson for now -- I expect it'll appear on the final ballot without my help. I'm also expecting Empty Space by M. John Harrison to be a contender, but I'm not sure if I should hold off on that one until I've (re-)read the other books in the Kefahuchi Tract series. vN by Madeline Ashby? Throne of the Crescent Moon by Saladin Ahmed? Range of Ghosts by Elizabeth Bear? Hannu Rajaniemi's Fractal Prince?

Anyone have any suggestions?