Considering my life pretty much revolves around music, its only natural I would have to start something here! So, what are your favorite bands???

Mine are Suicide City, As Summer Dies, Marilyn Manson, My Chemical Romance, Aiden, Strata, Kill Hannah, The Birthday Massacre, 30 Seconds to Mars, Gary Numan, A Perfect Circle, AFI, Billy Talent, Deadsy, Evanescence, Lacuna Coil, Rob Zombie, Deadstar Assembly, Chevelle, Matchbook Romance, King Diamond / Mercyful Fate, NIN, Pink Floyd, Queensryche, Red Jumpsuit Apparatus, Bauhaus, Stabbing Westward, Stevenmarque, Type O Negative, The Vincent Black Shadow, Cradle of Filth, Panic at the Disco,  Reggie and the Full Effect, The Cure, Green Day, Tom Petty, Bullet for My Valentine, Disturbed....and believe me when I tell you, this list goes on and on and on......

I've heard of a handful of those bands! lol
I'm still suck listening to the same bands I've always listened to.  I'm not nearly into music as I use to be, I think that's because of the industry though and the crap they put out now and it's hard getting my hands on good new music where I live.

Ok, to list a few.
NIN
Alice In Chains
Evanescence
Judas Priest
Tori Amos
Collide
Inkubus Sukkubus
The Cure
Iron Maiden
Metallica
The Stones
Rod Stewart
Def Leppard
Queensryche
and quite a few others.

Every time I answer this question, I think of a gazillion other bands once I've posted. But here's what's in my head at the moment.

NIN
Tool
Rage Against the Machine
Godsmack
Jimi Hendrix
Rolling Stones
Led Zeppelin
The Doors
Marilyn Manson
Rob Zombie

I listed to so many I could spend hours just writting names of bands I like, but this would be the ones, I listen to mostly and own more cd's of.

-HIM
-System of a Down
-NIN
-Evanescence
-ACDC
-Rob Zombie
-Green Day
-Metallica
-Killswitch Engage
-Korn

A Perfect Circle,
Alanis Morissette
Coldplay
Godsmack
Goo Goo Dolls
Marilyn Manson
Nine Inch Nails
Pixies
Tori Amos
Cold
Crossfade
Evenescence
The Cure
And that is not even half! I would probably be here for days....

Mmm my favorite band would have to be ... Aquilus... but of course.

H.I.M ! God, they are the greatest band ever....

Music is a major passion in my life,  as it may be for most.
There are hundreds and hundreds of bands which I love, but I'll just name several...

+ Marilyn Manson
+ A Perfect Circle
+ Her Infernal Majesty
+ Evanescence
+ Cradle Of Filth
+ Wednesday 13
+ A Destined Belonging
+ Murderdolls
+ Hiroshima Will Burn
+ Hawthorne Heights
+ Jack Off Jill
+ Atreyu
+ The 69 Eyes

Alice in Chains
Tool
Soundgarden
NiN
Nirvana
STP
Metallica
Vast
Rage Against the Machine
Rob/White Zombie
Led Zeppelin
The Beatles
Stevie Ray Vaughn and Double Trouble

My turn. I love all kinds of music. No country though. And very little rap as it is not what it once was.

Lacuna Coil
Evanescence
Celldweller
Linkin Park
Jag Star
Spin 66
Jane's Addiction
Van Halen
Charlotte Martin
Antigone Rising
Anthrax
Motorhead
Sarah MacLachlin
John Coltrane
Flyleaf
Queenrsryche
Christina Aguilara
Fuel
Diana Krall
Fisher
Joss Stone
Pink Floyd-Dark Side Of The Moon 5.1 SACD is unreal
Ana Nalick
Robert Cray
Public Enemy
Dream Theater
Berlin

that should be a good enough start

It's funny when you look at everyones list, they are very similar. We all like a lot of the same bands. I also have an extreme passion for music. I truly believe that music helps heal the soul. I have hundreds of Cd's and like an endless number of bands but I will list the ones that I love the most.

       Sarah McLaughlin
       Enya
       Evanescence
       Chevelle
       Jewel
       3 Doors Down
       Tool
        A Perfect Circle
       The Doors
       Alice in Chains
       Metallica (The old Metallica/they should have never changed)
       The lox (D-Block)
       The Carpenters
       Melissa Etheridge
       Keith Urban
And of course so many more. I really don't want to take up too much space.
      
      

I have a pretty eclectic taste in music, so here goes:

Hole
Muse
Rush
Marilyn Manson
CoF
Nirvana
Enya
Jethro Tull
Blackmores Night
Foo Fighters
R.E.M.
Within Temptation
Keane
Evanescence
HIM
Ozzy
Rob Zombie
Auf de Maur
Def Leppard
Saxon
Motorhead
Kula Shaker
Rammstein
The Darkness
Some classical
Korn
Eminem
JJ72
Focus
Placebo
David Bowie
Weezer
Ash
Mortiis

the only thing I didn't see in this thread that I would have to put in my play list is Jeffree Star. other than that you all listed everything I listen to. I'm just glad I'm not the only fan of the 69 Eyes, a.k.a. the Helsinki Vampires

NIN
Inkubus Sukkubus (I have seen them 4 times when I lived in the UK)
Iron Maiden
Metallica
Rolling Stones
Social Distortion
The Smiths
Black Sabbath
The Cure
Rob Zombie
White Zombie
For Giggles, I love the Cramps
That is JUST a few

Here are just a few of my favorite bands. I have way too many to write down.

VNV Nation, Cradle of Filth, Razed in Black, Dr. Steel, Valtaire, Cruxshadows, CombiChrist, Korn, Imperative Reaction, Powerman 5000, Celldweller, Alice in Videoland, KHZ, Android Lust, Mediaeval Baebes, Corvus Corax, Rob Zombie, Delerium, Billy Idol, Bond, Zombie Girl, Echos of Eternity, Azam Ali, Megadeth, Dreamside, Nightwish, Within Temptation, Epica, Funker Vogt, Wumpscut, Blutengel, Apoptygma Berzerk, And One, Loreena McKennitt, Dead Can Dance, Deathstar, Deadstar Assembly, Marilyn Manson, Disturbed   

I hate you!   Hell, I can't even find their cds around here! I have to order them online.

Wish I had known that... I could have burned some for you.

I had a lot of Inkubus Sukkubus stored on my computer that died. *kicks self for not backing my music up on disc*

I keep my photos and music backed up to 2 different external hard drives. And my photos are also backed up online at full resolution. I may be a little paranoid about losing my stuff though.