The 2012 fragrance awards season is over, and we have a winner: Gucci Guilty Pour Homme, which took 5 awards.*
A quick run down of past winners:
2011: Bleu de Chanel, with 8 awards
2010: Marc Jacobs Lola, with 7 awards
2009: Chloé Eau de Parfum, with 5 awards
2008: Marc Jacobs Daisy, with 7 awards
See also: the Perfume Awards page.
*This is my own (very) unofficial count, mind you, and only includes the award categories I report on — I usually skip awards for things like advertising and packaging. And it includes two late-in-the-year award programs from 2011 (Spain's Academia del Perfume awards, which take place in December, and the Fifi Awards Arabia, which take place in November).