I'm goin' against the grain and sayin I love the new millenium. There's a lot of nice blended genres that are creating some sweet music, like mixing keyboard and hip-hop with punk music. It's fun stuff.

I voted the 90s because of the whole grunge & death metal era, some great underground music came out of that period plus I grew up around then so it's what shaped me the most musically. I really like the early 80s also for the great punk scene that came out of the US (Circle Jerks, Misfits, The Fartz, Minor Threat, Angry Samoans, Husker Du, Necros......)
Mid to late sixities had some great garage bands too particulary The Stooges (just sneaked in at 1969), The Sonics and The Wailers (Sundazed has released some great compilations featuring bands in this vein + awesome 180g re-issues of the Stooges first two albums and the Nuggets series by Rhino has heaps of great shit also).
But yeh there's brilliance every decade its just a matter of sifting thru the shit to find it.

I like everything, but especially the 70's.

Tough...but I picked 80's

The 70s:ABBA, Deuter, Jean Michel Jarre, Kraftwerk, Neil Diamond, Tangerine Dreams, Vangelis

I THINK 70 -- 80 -- 90 ......LIKE ........ SEX PISTOLS DEAD KENNEDYS, BLAG FLAG DAVID BOWIE, NICK CAVE ,BAUHAUS, SIOUXSIE, TUXEDO MOON, JOY DIVISION, CLAN OF XYMOX, SKELETON FAMILY,VIRGIN PRUNS,DEPECHE MODE

KRAFTWAR,SKINNY PUPPIS, WUMPSCUT , SUICIDE COMMANDO ,
DEAD CAN DANCE , HOCICO,DAIMANDA KALAS
MONOLITH

WHAT ELSE DO YOU LIKE? HOW ABOUT THE BAND "CAPS LOCK!"

heh

Any era that gave us The Allman Bros, Grand Funk, Alice Cooper, Led Zep, [although their first album came out in 69 ]
and so on and so forth....gimme the 70s anyday.
<---don't fear the reaper, baby

the 70's got a bad name because of the horrible fashion sense ..
but there is a ton of great music there.