lets make this male-female the best vocal. no matter the genre. this opens it wide up. personally the best singing voices come from the UK. still have not figured this out yet. all i know the US cannot hold a candle to the UK in pure clean vocals. i know the homophobes seem to hate the great gay voices. but hey those guys can belt out some sound (rob halford). so here goes.

female, sara brighton
male, freddie mercury

these two voices are the very best in pitch and pure clean sound.