How about yet Axl Rose when he was a young god of rock, seen them live in Rotterdam 1992, that made me to start with my collection of GNR items.
Then there is of course Bruce Dickinson, saw Iron Maiden live 2 times and that man still knows how to sing and entertain.
Then there is Tom Araya, i wonder how long they will keep up yet... seen Slayer 2 times as well but that wont happen again i think.
Then yet Serge Tankian. Never seen SOAD live though which is a shame.