The following is a list of the stuff I liked best from 2012. In some cases, the "thing" might be have been released earlier than 2012, but I only discovered it within the last year. Feel free to provide your own lists in the comments.
Favourite book: Anathem by Neil Stephenson. Awesome read, check out my review from back in August.
Favourite movie: The Avengers. Tough call, as I really enjoyed The Hobbit: An Unexpected Journey as well.
Favourite game: RuneQuest 6th edition. An odd choice I suppose, since my group plays Pathfinder almost exclusively, but I just think RQ6 is a better game.
Favourite intoxicant: Highland Park single malt scotch...ok, that's the same as 2011...2010...2009...
Favourite news event of 2012: the landing of the Curiosity mars rover. In a year of god-awful news, Curiosity was a beacon of light, a marvel of human ingenuity.
Favourite music: Carolus Rex by Sabaton. Following their usual trend of writing about military history, Sabaton turned their attention to their home country of Sweden. Carolus Rex covers the rise of the Swedish Empire in the 17th century under Gustavus Adolphus, the peak of its power under Charles XII, the devastating defeat against the Russians at the Battle of Poltava in 1709 and the eventual death of Charles XII in battle in 1718.
Favourite sports event of 2012: The Habs are tied for first in the league at the end of the year.