This one is tricky. You want great players, but it's also important that to choose people who would (hopefully) have complimentary styles, and it's very important to have a band that is heavily populated with songwriters.
Vocals: Tony Martin (just pretend he can still sing like it's 1988)
Guitar: Roy Z
Guitar: Randy Rhoads (always wondered what he might have accomplished if he hadn't been stuck in Ozzy's overrated band)
Keys: John Lord
Bass: Neil Murray
Drums: Cozy Powell (Powell and Murray were a TREMENDOUS rhythm section)