Some of my favorites that sound good on MY system: I've discovered these to be some of my favorites that REALLY sound good on my particular system. I'll use these / play these when I'm introducing my hobby / system to someone for the first time.
Dire Straits: Sultans of Swing
Boston: Fore Play / Long Time
The Police: Wrapped around your finger
The Eagles: Hotel California (off of the Hell Freezes over album)
ZZ Top, Rough Boy
Def Leppard: Hysteria (and in general, anything off of the Hysteria Album)
Ratt: Lay it down
Ratt: Slip of the lip
Poison: Something to believe in
Dire Straits: Sultans of Swing
Boston: Fore Play / Long Time
The Police: Wrapped around your finger
The Eagles: Hotel California (off of the Hell Freezes over album)
ZZ Top, Rough Boy
Def Leppard: Hysteria (and in general, anything off of the Hysteria Album)
Ratt: Lay it down
Ratt: Slip of the lip
Poison: Something to believe in