Male vocalists (most talented, able to bridge genres, and wide ranges)
Corey Taylor (Slipknot, Stone Sour, and acoustic)
example of Corey Taylor acoustic:
Wild Horses Cover, With Slipknot:
Psychosocial, With Stone Sour:
Through Glass,
Do Me a Favor
Female vocalist (Sorry Ani, Tori, Poe, and Natalie, and even you Lzzy ... )
Amy Lee (evanescence, duet with Seether)
example of Amy Lee with Evanescence
My Immortal, With Seether
Broken (Ft. Amy Lee), Acoustic (Evanescence song)
Lithium
I enjoy musicians who can play, masterfully, in different genres, and not sound as though they're choking on the sounds.
That's why Lzzy didn't get it, same with Moody (5FDP singer.)