I have a lot so i'll just name a few.

Shame by depeche mode
Carried home by iron and wine
Into the mirror by minus the bear

Watermelon in Easter Hay - Frank Zappa
Child in Time - Deep Purple
Mistreated - Deep Purple
Stargazer - Rainbow
A Light In The Black - Rainbow
The Temple Of The King - Rainbow
This Side Of Paradise - Manfred Mann's Earthband
Shelter From The Storm (cover) - Manfred Mann's Earthband
The Mighty Quinn (cover) - Manfred Mann's Earthband
Babe I'm Gonna Leave You - Led Zeppelin
A Man Needs A Maid - Neil Young
Words (Between The Lines Of Age) - Neil Young
Shine On You Crazy Diamond (both parts) - Pink Floyd
Time - Pink Floyd
Black Napkins (as played in late 1976) - Frank Zappa
Peaches en Regalia (either arrangement I or III) - Frank Zappa

Great topic!! A few of my favorites are

Tides of Time - Epica
Don't You Cry - Kamalot
Beth - Kiss
Blinded no More - Sonata Arctica
Blowin in the Wind - Bob Dylan

Old Man - Manfred Mann's Earth Band

Eyes Of The World - Rainbow

Angel - Jimi Hendrix (can't decide between the 1967 acoustic and the 1970 electric take though)

The Prophets Song - Queen

I'm In Love With My Car - Queen

White Queen (As It Began) - Queen

Cortez The Killer -Neil Young

Pygmy Twylyte (live in Helsinki 1974)- Frank Zappa

Son Of Orange County - Frank Zappa

Son & Daughter - Queen

Jesus - Queen

For me it has to be "Chaand Sa Mukhra" by Ali Haider. Don´t think I have ever listened to a Pakistani song as often as this one, and that too from my childhood days.

Joe's Garage - Frank Zappa