No stone classics this year on par with last year (Black Keys and Adele), but overall about 10 truly excellent releases, and many really good ones. In many cases I've added a video of a track to check out. Overall, a lot of good releases in the rock field (I don't like hip-hop or contemporary-sounding R&B and country for the most part).
While I listen to a lot of new music, I am also loyal to bands that I love and will typically pick up their new albums and give them a shot. On that front:
Surprises: Rush, ZZ Top, Smashing Pumpkins, Dr. John, Neil and the Horse.
Letdowns: DMB, Muse (just a slight letdown - "Madness" is at least a killer track), Heartless Bastards, Sigur Ros, Paul Weller, Soundgarden, and the 3 Green Day records, which combined maybe have 10 decent songs on them and very few great ones.
(I didn't include Aerosmith and Van Halen in either bucket because my expectations weren't very high to begin with, but at least each of their albums have a few solid songs).If you want to really go deep, here's my top albums of the '90s and the '00s, as well as my Top 500 Bands Of All Time.