TV On The Radio-"Dancing Choose"
Semi Precious Weapons-"Jesus"
Cancer Bats-"Lucifer's Rocking Chair"
Colin Munroe-"Will i Stay"
The Kills-"Cheap And Cheerful"
Tom Gabel-"Harsh realms"
Why?-"These Few Presidents"
M.I.A.-"Bird Flu"

Far Away - Cut Copy
Twilight At Carbon Lake - Deerhunter (fave off microcastle)
Nothing Ever Happened - Deerhunter
Phantom Other - Department of Eagles
Hunter - Portishead
These Stones Will Shout - The Raconteurs
Mansard Roof - Vampire Weekend
A-Punk - Vampire Weekend
Fine Young Cannibals - Wolf Parade

Going by iTunes play counts and limiting to one per artist:

Consoler of the Lonely - Raconteurs
Lights & Music - Cut Copy
Pork and Beans - Weezer
Homeless Hero - Bufi
Bixby Canyon Bridge - Death Cab for Cutie
Buildings & Mountains - Republic Tigers
Maybe That's The Meaning Of Life - Carbon/Silicon
Spaceman - The Killers
Waving Flags - British Sea Power
Life in Technicolor - Coldplay

Portishead - Machine Gun

I never tire of it's simplicity. Needs to be heard LOUD.

Death & All His Friends-Coldplay
I Will Possess Your Heart-Death Cab for Cutie
Goliath-The Mars Volta
Please Just Take These Photos From My Hands-Snow Patrol
Youngblood-Russian Circles
Missing Something-Autovaughn
Olympic Airways-Foals