I don't know much about GH: Aerosmith, cuz i'm not into them much, but I recall hearing that for at least GH: Metallica, the non-Metallica bands featured in the game would at least be related somehow; ie a band that inspired/was inspired by Metallica. Right?
So i kinda figured that GH: Van Halen would be the same way, but then I look at that set-list and have to think "What the **** are blink182 doing there?" and this is coming from someone that actually likes the band lol!