A sampling of things I like:

1)The Foo Fighters
2)Live Recordings
3)Acoustic Tracks

The following are from The Foo Fighters Skin and Bones album:

The Best of You
I have a better live recording of the best of you that I'll post when/if I find it, but this one is pretty delightful. The first few bars always give me shivers.

Everlong
Dave Grohl's voice is soothing and awesome, yes? :) this is an old favourite of mine Also... call me crazy, but I enjoy the parts where the audience sings along... it sounds kind of haunting.