I usually gauge my most listened to of the year by looking at the Itunes play count on my computer but this year I got a new phone and have used it to listen to music more often so the count is a little off. Also, three albums have really dominated my year (with Foo Fighter's last album being a distant but equally overplayed 4th). Because three albums so dominated my computer this year, I just put the entire albums on the list rather than having a list comprised of about four bands.
I'm a bit surprised by the lack of post-rock (Explosions in the Sky and Mono especiallly) but I have multiple albums from each group and the songs are much longer than the pop/indie tunes so I guess they didn't rack up as many listens.

Anyway, here's the list and I recommend giving all of these bands/songs a listen.

1. Foxy Shazam (album) by Foxy Shazam
2. Weathervanes (album) by Freelance Whales
3. Picking Up the Pieces (album) by Fitz and the Tantrums
4. "1,000,000" by Nine Inch Nails
5. "The Pretender" by The Foo FIghters
6. "The Whip" by Locksley

7. Rain, Rain by People Eating People
8. Paper Aeroplane by Angus and Julia Stone
9. "Audience" by Cold War Kids
10. "Little Lion Man" by Mumford and Sons
11. "The Fixer" - pearl jam
12. "Serotonin" - Mystery Jets

13. "Animal" - Neon Trees
14. "The Heartbeat Song" - The Futureheads
15. "Whose Side Are You On Anyway?" by Absofacto
16. "Long Road to Ruin" by Foo Fighters
17. "She Sells Sanctuary" by The Cult
18. "Untouchable Face" by Ani DiFranco
19. "Hexed All" by Russian Circles

20. "Strugglin'" by K'Naan