I can't decide, I actually liked a lot of stuff that came out this year, but I'll go with "Systematic Choas" by Dream Theater for sake of convience, seeing as I saw them on tour this year and they owned.
I can't wait for the new Metallica album this year that will either...
A. [Somehow] be EVEN WORSE than St. Anger
B. [Not A Very Good Chance Of This] return to their roots.