Watershed Mikael's best vocal performance to date?

I dont know how you could think that this would be anything other than his best vocal performance.
every thing sounds smooth, cant hear any overdubs.
As for the screams Mike does yet another stellar effort.
I just love the screams in lotus eater the "oh brother your a killer" bit, epic.
 
For clean vocals, definitely yes. The growls...well they're fantastic too but sometimes I prefer GR.
 
Yeah, I think his vocals get better every album.

There was something amazing about his vocals on GR though. Those growls on GR were so awesome.
 
His voice quality has definitely changed, but I'm not 100% sure it's an "improvement", per se. I've always thought his cleans were great, and they still are, they're just a bit more refined. All in all, I still think I prefer his old vocal tone over the "new and improved" tone.