Since I am a self proclaimed rock expert let me give you my winners...

Bracket 1 ... Zeppelin

Bracket 2 ... Rush

Bracket 3 ... Sabbith

Bracket 4 ... Metallica

Bracket 5 ... AC/DC

Bracket 6.... Doors

Bracket 7 ... Alice In Chains

Final 4 ... Zeppelin, Sabbith, AC/DC . A;ice in Chains

Zeppelin over AC/DC in a land slide

Erm... Seven brackets?

And Rush has already lost...