If Iron Maiden's not a slam-dunk license then there is no such thing as a slam dunk license. That thing would be gone, blown out the door. As would Judas Priest, Ozzy, Black Sabbath and Led Zeppelin. I think Slayer would be better and higher energy than all of them. (Slayers music is freakin awesome for those of you who may not know- Im just now realizing it because I could never get past the whole devil thing until like just last year or so, so I never cared to give em a listen). But you know the fan base of these bands, pinball Wizards though they may be, is getting old now - so better hurry on with any of these titles.