Kerrang!, a rock magazine, also named the Californian trio the Best Live Band.
The group My Chemical Romance, from New Jersey, won the prize for Best Album (Three Cheers for Sweet Revenge) and Best Video (Helena).
The American group Foo Fighters won Best Song for Best of You.
Rock veterans Iron Maiden were honoured at the ceremony for their lifetime acheivement in rock music. The evening was hosted by Juliette Lewis, who also performed with her band, Juliette and the Licks.