Pokemon X and Y are pretty cool - you can move diagonally now, and even sit on benches. Also they did this whole 3D thing where Gamefreak went back and re-rendered all the pokemon from previous generations for next gen standards. Bioshock Infinite was really cool too - murder of crows. Also the plot and the intro.
Breaking Bad ended this year, so I'd consider it for best TV Series, or at least best TV Drama. Walking Dead has been really intense this year as well, though I wouldn't consider it to be on the same production standards as its meth based AMC counterpart.
Tim from MarbleHornets is definitely my vote for best Slenderverse character of the year. EverymanHYBRID's inHABITed Evan comes as a close second though.
New Fall Out Boy album - Save Rock and Roll was well produced, and the vocals were really strong. I'm sure I'll get a lot of flack for choosing something so poppy, but hey, a band from my high school days, that broke up, got back together to make a thing - so hell yeah I'm all over it. Daft Punk also came out of a non-soundtrack retirement with Random Access Memory which was hella smooth and enjoyable.
As for perhaps the best up-and-coming series - Welcome to Night Vale made a big boom in listeners this past summer, and deservingly so. It's a podcast series that comes out on the first and fifteenth of every month, and it's basically NPR meets H.P. Lovecraft meets the Onion meets Courage the Cowardly Dog meets Twin Peaks. Episodes are only half an hour a piece, and the series is super easy to get into.