Duck Hunt Virtua Cop House of the Dead series Area 51 And while I don't know about quality, for some reason a Crisis Zone machine has been in every arcade I have ever been in since its release.
As for light gun games that should never be mentioned again: Revolution X
Operation WOLF (Arc) Snatcher (Sega CD version added support for light guns) Virtua Cop 2 (Arc) Yoshi's Safari (SNES) Lethal Enforcers (not really but brings great memories of the arcade)