Who would you have? I'd personally say:

Vocals: Robert Plant (Led Zeppelin)
Guitars: Eddie Van Halen (Van Halen)
Bass: Mike Inez (Alice in Chains)
Drums: Sean Kinney (Alice in Chains)

It can be a band... a group... or just merge your favourite vocalists into the ultimate singer!

Tell me if this has been done...

Oh I did this a while ago on LJ, I'll post the original version of the band and see if I can update it now.

Hmmm....

Vocals: Maynard James Keenan (Tool)
Guitar: Tom Morrello (Rage Against The Machine/Audioslave)
Bass: Chris Wolstenholme (Muse)
Drums: Danny Carey (Tool)

*Ugh* I hope to God "supergroups" don't come back in style.

On the whole, I quite agree. But I'm not a huge fan of Audioslave, so I'm not sure if Tom Morrello would be wonderful as a separate guitarist, as much as I love him.

Maynard is my second favourite vocalist in the world - his voice is shocking, live or recorded. But Mike Patton beats him for range. I'd love to see them do something together - I'd die a million deaths. Maynard is beautifully voiced, Patton (who, yes, I am addicted to) has got a wonderful range and is also very musically inspirational. MJK may take over if the new Tool album is any good, but the last two APC albums haven't gripped me, I'm sad to say. I'm concerned. Oh yes.

But, either way, Maynard makes me go 'ra!'.

As for Trent Reznor - creatively, he's wonderful. His vocals are very distinctive, but I've never felt them well-performed. Speaking/singing - it works for his type of music, but otherwise I feel it would fall down.

I'm an opinionated bitch without adding anything worthwhile to the thread (mainly because I couldn't decide). But, y'know. 'Yay' anyway.

Vocals: Freddy Mercury
Lead guitar: Roger Waters
bass guitar: Les Claypool
Keyboard: Ben Folds
Drums: ? I don't know enough, so I don't think I could accurately judge

Keyboard/Vocals: Stevie Wonder
Harmonica/Vocals: John Popper
Guitar/Vocals: Eric Clapton
Bass: Bobby Sheehan
Drums: Anyone who can drum with 'em.

Why would I have to make my perfect band when Queen already exist?

Existed. Who would you replace Freddie with? And considering the rest of the band are getting on a bit, some new blood might be in order in general.

Old smould, as long as they don't get chronic arthritis of the wrists or drum stick waving appendatures they're still going to rock out for a while.

Well, one of them is dead... I'd say that would hinder the rocking out somewhat.

Brain May and Roger Taylor are always popping up in random places to keep things alive. Ok so its not Queen as it was when Fred was alive but its the essence of them, which good enough for me.

But yeah, Queen the band may be finished but the music lives on.

You can't just create a perfect band. There's no such thing as a perfect band. You'd have to encompass every type of sound that you listen to. You could take good musiciansand put them in a band that would work. Case in point, an awesome rock band:

Vocals: Scooter Ward (Cold)
Guitar/backup vocals: Aaron Lewis (Staind)
Guitar: Virus (Dope),
Bass: Shawn Economaki (Stone Sour)
Drums: Sully Erna (Godsmack)

That took a lot of thought, by the way.

My perfect band would have Amy Lee from Evanescence and Dave Draiman from Disturbed doing vocals.

Okay, that would kick ass.

Oh yes yes yes. Who cares who's backing them up? The vocals would be so fantastic it wouldn't really matter.

Remember this thread?

Not surprised if you don't, but it is perfectly cromulent.

Inky, dude, we're old, everything's been done, let the kids have their play time

and why? why would you have Amy Lee? there are SO many better female vocalists out there....really.....Amy Lee?

Edit: For the record, I take bands as they come, they have their own strengths and weaknesses which make them what they are and which make them good, you can't mix and match, it just doesn't work that way.

I know that, foo'. I was just saving myself the effort of coming up with a new answer. Plus it shows how much I used to kick ass at thread creation.

Yeah baby. Team Kybosh > you.