favorite vocalists (clean vocals).

Bruce Dickinson !!
Tim Owens (iced earth)
Mikael Åkerfeldt (opeth)
Jonas Renkse (katatonia)
Mikael Stanne (dark tranquillity)
Dan Swanö (edge of sanity, Nightstingale, unicorn)
 
Dax Riggs (Acid Bath)
Tim Aymar (Control Denied)
Mikael Stanne (Dart Tranquillity)
Vortex (Dimmu Borgir)
James LaBrie (Dream Theater)
Burton C. Bell (Fear Factory)
Chad Gray (Mudvayne)
Warrel Dane (Nevermore)
Mikael Akerfeldt (Opeth)
Tommy Victor (Prong)
Lajon Witherspoon (Sevendust)
Bjorn Strid (Soilwork)
Oyvind Haegeland (Spiral Architect)
Devin Townsend (S.Y.L.)
Serj Tankian sp? (System of a Down)
Chuck Billy (Testament)
Maynard James Keenan (Tool)
 
the power metal section:
the guy from sonata arctica
tobias sammett-edguy, avantasia
kimberly goss-sinergy
ralf scheepers-primal fear
the girl from nightwish

the rest:
vortex-dimmu borgir
old school james hetfield
old school chuck billy
mikael akerfeldt-opeth
 
russell allen (symphony x)
chad grey (mudvayne)
chris cornell (soundgarden and audioslave)
layne staley (alice in chains)
jerry cantrell (ex-alice in chains, now solo)
brandon sallers (atreyu)
vortex (dimmu borgir)
phil anselmo (pantera and down only)
maynard james keenan (tool and a perfect circle)
anders friden (in flames)
christina scabbia (lacuna coil)
zakk wylde (black label society)
lajon witherspoon (sevendust)
burton c. bell (fear factory)
jesse david leach (ex-killswitch engage)
howard jones (blood has been shed and killswitch engage)
devin townsend (syl and solo)
robb flynn (machine head)
 
Urban Breed (Tad Morose)
Tobias Sammet (Edguy)
Timo Kotipelto (ex- Stratovarius)
Bruce Dickinson (Samson, Iron Maiden)
Rob Halford (Judas Priest, Fight, Halford)
Ronnie James Dio (Rainbow, Black Sabbath, Dio)
Andi Deris (ex Pink Cream 69, Helloween)
Kai Hansen (ex Helloween, Gamma Ray)
 
Dax Riggs from Acid bath is my favorite, followed by Vincent from Anathema, and Ozzy Osbourne in his black sabbath days, he had such a expressive voice back then, and it influenced so many.