Iron Maiden? I'd get an
overdrive pedal (it has enough gain, but a pedal will tighten it up for a truer maiden sound) Then it would do that fine.
Black Sabbath? Are you kidding! This is Toni Iommi's signature head! Whom, is and always has been the Black Sabbath guitarist. Just crank it up and crank the bass and mids and keep the gain down and strum hard and you should get a pretty good vintage Orange vavoom goin on.
Pantera? **** that man, why would you want to? Just get yourself a Boss MT-2, and knock your lights out with that nasty cheese tone.
Thin lizzy? sure, just keep the gain down and the presense up for a real marshally tone and you've got it.
RHCP? well, navarro's a lameass and his tone aint incredible, but if your lookin for John Fruciente's tasty licks, I think a Laney will do fine.
Basically, if you can hit the notes at the right times, you'll sound like what you want. If your sloppy or simply cant play the notes, no amp is gonna help you there.
Ive got an 80's Laney AOR 100w, and its tone is very marshally when cranked and its extremely versitle. Lets your fingers do the magic, its got the greatest clarity of any amp ive ever played, which will allow your fingers to bust out the tones, instead of the amp.