No vote: Schlock Mercenary: Random Access Memorabilia, written and illustrated by Howard Tayler. I rated previous volumes last in 2009, 2010 and 2011, and felt no need to try again last year or this. The previous volume came fourth last year.
4) Locke & Key Volume 5: Clockworks, written by Joe Hill, illustrated by Gabriel Rodriguez - a brilliant opening episode, but much of the rest depended rather on the reader having more knowledge of previous volumes of the series than I had. No doubt some voters will vote for the series as a whole; the previous volume came third last year, behind Digger and Fables vol 15.
3) Saga, Volume One, written by Brian K. Vaughn, illustrated by Fiona Staples. As noted earlier today, I loved the art here, but was less overwhelmed by the story.
2) Grandville Bête Noire, written and illustrated by Bryan Talbot. Witty and artistic, and a very tough choice as to whether I should put this top; I might yet change my mind.
1) Saucer Country, Volume 1: Run, written by Paul Cornell, illustrated by Ryan Kelly, Jimmy Broxton and Goran Sudžuka. A story about UFOs and an American presidential campaign: perhaps not as High Art as Talbot, but tickles own peculiar tastes a good deal more, so gets my top vote. Probably.
This is a good list; it was in no way a chore to read any of these.
See also: Best Novel | Best Novella | Best Novelette | Best Short Story | Best Related Work | Best Dramatic Presentation (Short Form)