Sienna Miller cover of GQ (UK) wins reader's choice poll as best cover of 2009.

This was the best British magazine front cover from last year, as voted by the public in the annual Maggies magazine cover awards. (thanks to Magculture.com). The Maggies are the result of a national poll of readers.The Maggies website  quotes Charlotte Zamani, the managing editor, on why it was the winner:At a time when ‘flat was the new up’, GQ grew by 8% at UK newsstand and now outsells the