For most reviewers, Gameplay encompasses control and replay value.
Graphics....well, eye candy, frame rate, artistic quality(which is purely subjective).
Sound - music, sound effects. This is actually quite important. A game can become quite bothersome when it\'s spewing some generic track you can\'t stand. Yet, a below average game like Shadows of the Empire held my interest because of the quality of Star Wars music. Sound Effects - Gran Turismo had REAL car engine sounds whic added to the realism of this AAA game.