1960s
The Beatles
The Rolling Stones
Jimi Hendrix
The Beach Boys
Bob Dylan
No real surprises there.
1970s
Pink Floyd
Led Zeppelin
Queen
John Lennon
Elton John
Ok - but I would have given the nod to The Clash (#6) or Bowie (#7) over the Johns.
1980s
Michael Jackson
AC/DC
Joy Division
Metallica
Hunters & Collectors
With the Pixies (#6), New Order (#7), G'n'R (#8) and Crowded House (#9) this constitutes a pretty diverse group - and the first appearance of Aussie / Kiwi artists.
1990s
Radiohead
Jeff Buckley
Nirvana
Smashing Pumpkins
Pearl Jam
Add RATM (#6), Tool (#7), Massive Attack (#8), RHCP (#9) and Foo Fighters (#10) for a pretty awesome bunch of artists. Possibly less diverse than the 80s - but certainly "weightier".
2000s
Powderfinger
Daft Punk
Hilltop Hoods
Muse
White Stripes
Killers (#6), Bloc Party (#7), QoTSA (#8)? I think think the pickings are much slimmer than any of the previous decades.
Are we treading water until the next explosian of creativity? Will we look back on the 2000s as a bit of a musical desert? Or will other great songs / artists from the 2000s be discovered / remembered with more time to reflect? Or is the Age of Rock passing, like the Elves from Middle Earth?