JT Woodruff - Hawthorne Heights Jordan Pundik - New Found Glory There may be others that sound similar, but they still have unique voices
Chris Cornell & Jeff Buckley. IMO, the two best singers that have lived. They both have power, range, uniqueness, everything.
Tim Armstrong - I can always tell his voice. Ozzy Osbourne - Ozzy has his own sound. Chester Bennington - I can't find any other bands that have a vocalist that sounds just like Chester...So that's unique. Jon Davis - You can always tell Jon's voice. Serj Tankian - Very original voice. You can always tell when it's Serj. Lots of bands I know other than this that have unique sounding lead singers, but I dont know their names.
In addition... Matt Bellamy - Muse Jimmy Urine - Mindless Self Indulgence and The Man in Black himself, Johnny Cash.