How the fuck did I forget DARK ANGEL? Yeah, they definitely have to be there. And 'Eternal Nightmare' by Vio-lence is one of the greatest thrash songs ever written, so they could just play that six times in a row and I'd be happy. Hmmm....
Dark Angel - Mostly 'Darkness Descends' stuff with some 'Time Does Not Heal' thrown in, too. 'We Have Arrived' had some good songs too, just weak production. 'Leave Scars' still doesn't do much for me but if they played the first two songs from it that'd rule.
Sabbat - Anything from 'History of a Time to Come' and 'Dreamweaver (Reflections of Our Yesterdays'.
Destruction - 'Release from' motherfucking 'Agony'!!!
Sodom - 'In the Sign of Evil', 'Obsessed by Cruelty', and especially 'AGENT ORANGE'.
Kreator - Anything from the first five albums.
So that's a Big Five. Whatever. Also Sepultura playing a bunch of 'Schizophrenia' songs, some 'Beneath the Remains' songs, and 'Infected Voice' about six times in a row, that would do just fine.