I haven't seen these yet, and frankly it's very tough for me to pick just one song for each of these, so I wont:
Scorpions - The Zoo/Wind of Change/Still Loving You
Dio - Holy Diver/Rainbow in the Dark (but honestly every song on Holy Diver is good)
Iron Maiden - Where Eagles Dare/Flight of Icarus/Be Quick or Be Dead
Creedence Clearwater Revival - Ramble Tamble/Run Through the Jungle/Long As I Can See The Light (For my money Cosmo's Factory is one of the best, most complete albums ever made. Ever.)
for funsies Jackyl - The Lumberjack