Batman #13, the opening chapter of the “Death in the Family” crossover.
The Joker has never been scarier and the tension throughout the entire thing is absolutely stunning. Also the short backup story, again written by Snyder but with Jock on artwork is terrifying and gives us a villain to be truly feared. Takes characters that have been around for ever and gives them a whole new lease of life all while setting up what is shaping up to be an epic crossover throughout the bat books. Perfect stuff. Not only the best event comic of the year, but for my money the best single issue of the year.
Eh? Nobody gives a fuck what I think? Fair enough. In that case go with Comic Alliance who have given their “Best Event Comic of the year” to the Trifecta crossover. Read all about it on their website here. Good for them.