Diablo
Insomnium
EDIT:Nomans Land
When have they EVER used clean vocals?
Yes Insomnium is an awesome band, its just the vocals that get a little annoying, but its workable because their music is awesome. They are up there with the old InFlames stuff.
If they had a vocalist like that of Amorphis Insomnium would be one of the best bands I've ever heard.
As for Diablo, i guess not half bad but not really MDM. And Nomans land.. eh not sure bout them.
And your also right about Amon Amarth, I've never heard them use any mildly nongrowling tones.
They has some nice guitar work, but the vocals truly lower them in my book.
Some bands can get away with the cookie-monster vocals like: In Flames, Five Finger Death Punch, and especially DevilDriver but others just sound like they are trying way too hard.
I mean don't get me wrong I am not looking for some Breaking Benjamin vocals, but I need that sweet spot in between like that of vocalist Ryan McCombs for Drowning Pool's Full Circle and for Soil's Redefine & Scars.
Perhaps this is why Amorphis and Disarmonia Mundi appeal to me so much because of those vocals with the Gothenburg Metal touch.
Please keep the suggestions coming =]