1) Breaking Bad
2) Homeland
3) Spartacus: Gods of the Arena
4) Game of Thrones
5) Boardwalk Empire
6) Archer
7) Justified
8) Sons of Anarchy
9) The Borgias
10) Curb Your Enthusiasm
The top 2 are my best shows of the year, w/ the edge going to Breaking Bad. This is the God-tier. The next 4 are also A-level shows for me. Spartacus satisfies your basic impulses unlike anything else yet it also manages to weave an intricate and satisfying plot. I consider the rest B-tier shows, lacking in certain areas but still quite good.
Honorable Mentions: Treme, Shameless, Modern Family, Fringe (back-half of last season only; this season has only been decent). I also consider these to be B-tier shows, but just missing the cut of the top 10.
The rest (that I also watch): Survivor, Revenge, True Blood, Weeds, Californication, The Walking Dead, Raising Hope, Bones, House, Supernatural, South Park and Dexter.
Survivor is still entertaining after all this time on, but I started to treat a lot of the past couple of seasons as background noise. The next four shows are fun guilty pleasures if you turn off your brain, but not worthy of mention on any 'best of' list for me. The rest, except for Dexter, are decent/OK and typically treated as background noise. Dexter, on the other hand was pretty retched.