Who are the winners you ask? The usual suspects - Rahman and SEL, clearly our best musicians of the decade along with new recruits Amit Trivedi and Shilpa Roa. Aamir and Farhan Akhtar dominate in terms of star power.
So without further adieu, here's the list: (in descending order of release date)
Zindagi Na Milegi Dobara (2011)
Music director: Shankar Ehsaan Loy
Best song: Khaabon Ke Parinday
Dark horse: Background score
Listen online: Google music, grooveshark, gaana.com
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Udaan (2010)
Music director: Amit Trivedi
Best song: Aazaadiyan
Dark horse: Naav hai teri
Listen online: Google music, grooveshark, gaana.com
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Music director: Shankar Ehsaan Loy, Amit Trivedi
Best song: Iktara
Dark horse: Ikatara (male version)
Listen online: Google music, grooveshark, gaana.com
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Music director: Shankar Ehsaan Loy
Best song: Tum ho to
Dark horse: Phir Dekhiye
Listen online: Google music, grooveshark
..........................................................................................................Delhi 6 (2009)
Music director: A.R. Rahman
Best song: Arziyaan
Dark horse: Dil Gira Dafatan
Listen online: Google music, grooveshark, gaana.com
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Life In A...Metro (2007)

Music director: Pritam Chakraborty
Best song: O Meri jaan
Dark horse: Baatein Kuch Ankahee Si
Listen online: Google music, grooveshark
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Music director: Amit Trivedi
Best song: Duniya Ye Duniya Badi Gol
Dark horse: Dhol Yaara Dhol
Listen online: Google music, grooveshark, gaana.com
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Rang De Basanti (2007)
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Music director: A.R. Rahman
Best song: Luka Chuppi
Dark horse: Khoon Chala
Listen online: Google music, grooveshark, gaana.com
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Taare Zameen Par (2007)
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Taare Zameen Par (2007)
Music director: Shankar Ehsaan Loy
Best song: Taare Zameen Par
Dark horse: Maa
Listen online: Google music, grooveshark, gaana.com
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Lakshya (2004)
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Lakshya (2004)
Music director: Shankar Ehsaan Loy
Best song: Lakshya
Dark horse: Kitni Baatein
Listen online: Google music, grooveshark
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Swades (2004)
Music director: A.R. Rahman
Best song: Yes Jo Des Hai Tera
Dark horse: Saawariya Saawariya
Listen online: Google music, grooveshark, gaana.com
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Dil Chahta Hai (2001)
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Dil Chahta Hai (2001)
Music director: Shankar Ehsaan Loy
Best song: Dil Chahta Hai
Dark horse: Akash's Love Theme
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Lagaan (2001)
Roja (1992)
Lagaan (2001)
Music director: A.R. Rahman
Best song: Mitwa
Dark horse: O Rey Chori
Listen online: Google music, grooveshark
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(This one's purely for old time sake, 20 years...still good enough to make the cut!)
Music director: A.R. Rahman
Best song: Yeh Haseen Vaadiyan
Dark horse: Bharat Humko Jaan Se Pyara Hai
Listen online: Google music, grooveshark
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Notable mentions: 3 Idiots, Chak De India, Anjaana Anjaani, Jab we met, Omkara, Jodha Akbar, Kal Ho Naa Ho, Jaane tu na jaane na, Delhi Belly, The Legend of Bhagat Singh, Saathiya, Kaminey, Namastey London