Let me simplify it for you:
Every comic book series goes through a creative slump, it's the nature of the medium.
Just because a particular editor or group of writers can't get a grasp on the character doesn't mean it's necessary to go back to the beginning and start from scratch, all it means is that you need a new editor and new writers.
In the face of the Clone Saga, Spider-Man Chapter One and JMS' run I'm sure many Spider-Man fans would agree with that.
And you're argument that Superman's different because he's had a new comic every week is BS for the following:
Spider-Man's continuity dates back to the 60's, not the 80's like Superman.
Both characters have had the same amount of comics in the same ammount of time (four titles each since the mid 80's, give or take). Spider-Man may even beat Superman's record based on how many minis he gets.
Superman's origin has been revised as often as Spider-Man's, if not more so (the 0 issues, Hunter/Prey, Starman #51, etc), so it's as fresh if not fresher than Pete's.
