your best line-up

Midnight - Vocals
Vinnie Moore - Guitar
Tony Macalpine - Guitar, Keyboards
Thomas Miller - Bass
Jason Rullo - Drums

or

Ronnie James Dio - Vocals
Ritchie Blackmore - Guitar
Jon Lord - Keyboards
Roger Glover - Bass
Ian Paice - Drums
 
NocturnalSun: I wanted to post to this very thread. I have better things to do with my life than monitor all the past topics and their contents.
 
Little Jimmy Urine (mindless self indulgence)- Vox
The Coyle Twins (god fordbid)- Guitars
Cryptopsy's bass player- Bass
Dead Elizabeth's keyboard player- Keyboard
The Locust's sample/programming player- Samples/Programming
Behemoth's drummer- Drums

THAT BAND WOULD RULE!
 
My mostly out of commission lineup, 4 of 5 :

Bjorn "Speed" Strid (lead vocals from Soilwork who can sing both death/melodic vox)
Bill Steer (lead guitar, now defunct)
Dave Mustaine (rhythm)
David Ellefson (bass guitar)
Dave Lombardo (former drummer from Slayer who has no peer in my humble opinion)
 
Mikael Akerfeldt-Vocals and Guitar
Vortex-Vocals
Vintersorg-Vocals
Peter Lindgren-Lead Guitar
Bjorn Gelotte-Lead Guitar
Johan Defarfalla-Bass
Max Duhamel, Martin Lopez, Nick Barker-Drums

:tickled: Three of each vocalists and drummers, oh well thats a bunch of random people I know I'd like to have in a band.
 
James Murphy (Obituary, Testament, Cancer, Death, solo artist) - guitar
Terrance Hobbs (Suffocation) - guitar
Steve DiGiorgio (Sadus, Death) - bass
Flo Mournier (Cryptopsy) - drums
Frank Mullen (Suffocation) - vocals
 
Michael Kiske (Helloween) - male vocals
Sharon den Adel (Within Temptation) - female vocals
Stefan Weinerhall (Falconer) - guitar
Dave Mustaine (Megadeth) - guitar
Steve Harris (Iron Maiden) - bass
Thomas Stauch (Blind Guardian) - drums
Jens Johannson (Stratovarius) - keyboard
 
Lorin Cook - Low/Clean Vocals ( EX Wicked Innocence )
Lenzig - Vocals ( Cephalic Carnage)
Jason Martz - Guitar ( Wicked Innocence )
Zac - Guitar ( Cephalic Carnage)
Tim - Guitar ( Skeleton of God )
Les Claypool - Bass ( Primus, etc..)
Brann Dailor - Drums (Mastodon, EX Lethargy )
 
Vocals-Rob Halford(Judas Priest, Fight, Halford)
Guitar-Dave Mustaine(Metallica, Megadeth)
Guitar-Jon Schaffer(Iced Earth, Demons & Wizards)
Bass-Steve DiGiorgio(Sadus, Death, Iced Earth, Vintersorg, Dragonlord, Testament)
Drums-Sean Reinhart(Death, Cynic, Aghora)
Keyboards/Vocals-Jon Oliva(Savatage, Doctor Butcher, Trans-Siberian Orchestra)
 
Vocals - like everyone else said, Mikael Akerfeldt (Opeth)
Bass - Michael Nicklasson (Dark Tranquillity)
Guitar 1 [rythm] - Jesper Stromblad (In Flames)
Guitar 2 [lead] - Al Frank Pitrelli (Trans-Siberian Orchestra)
Drums - Raymond Herrerra (Fear Factory)

I think it would be interesting to see renowned Melodic Metal musicians like the ones above paired up with the heaviest-hitting drummer in the world. Raymond Hererra has to be the king of the drumset. I think the result from this band would be amazing melodic Death Metal with a more atmospheric feel to it.
 
Vocals - Mikael Akerfeldt (Opeth, Bloodbath)
Guitar - Chuck Shuldiner (Death, Control Denied)
Guitar - Jeff Loomis (Nevermore)
Guitar - Alexi Laiho (Children of Bodom, Sinergy)
Bass - Steve Digorgio (Death)
Drums - Richard Christy (Death, Iced Earth)

Mournful
 
Vocals: Kyle Symons (Malevolent Creation/Hateplow)
Guitar: Phil Fasciana (Malevolent Creation)
Guitar: Lars Löfven (Defleshed)
Bass: Steve Harris (Iron Maiden, I´m not a big fan and I think the elder will have som problem keeping up with the insane riffing but he was the only one I could think of...)
Drums: Flo Mournier (Cryptopsy)