LLC,
Yea, I see your point. Yet it is the lead singer for the most part that "stands out" in the group. The Doors, for instance....without Jim Morrison where could they go? Same with LZ. You hear Plant's voice and you KNOW what group it is. Know what I mean?

Oh, no, I totally agree with you. I just don't agree with how lead singers are instantly regarded as the center of the band, when in actuality, many of them are the least talented member of the group. In Zeppelin's case, Bonham was clearly the most talented (but all four of them are extremely good at what they do), but they just parade around without him anyways. I mean, this past reunion show was actually a good idea and a nice surprise, and John's son played drums, so it wasn't too big of a deal. But two out of four members is not enough to constitute a reunion tour.
But again, I think this all goes back to how cocky classic rock is. With most bands of the era, I love their music but I absolutely hate the personalities of the band members. I recall seeing a video from Woodstock 1994 in which Pete Townshend basically announced he was better than Hendrix for not over-dosing on drugs, in a very sardonic and round-about way.