Originally Posted by almauro

Opeth yes, but the Slipnot and In Flames, are no where near the same league. The only vocalist that comes close to the harsh/clean vocals of Mikael Åkerfeldt was Scar Symmetry's former frontman, Christian Älvestam. This style of singing is virtually impossible to pull off and ends up sounding pretty forced and lame and is why I prefer screaming/growling in metalcore. TDEP is another band that I think pulls if off very well.