My favorite rock singer is Trent Reznor, one of the few singers who can keep a tone while screaming. Amy Lee of Evanescence has a great voice and is great to look at, but is inconsistant. Bill Withers' voice always stops me while I'm skipping through the radio, has some good ones on youtube as well. Freddie Mercury has an awesome voice, as does the lead singer from ACDC(can't remember his name right now)
I grew up in the late eighty's and there wasn't any decent music that was new when I was a kid, and the rock scene wasn't all that impressive when I was in high school(grunge
) so I listen to a pretty broad spectrum of music.