Which band IS really America's Greatest (rock & roll band)?


When I consider my priorities for this category, I cannot come up with any other than CCR.

Their output as a band was short compared to others, yes..

When I say America's greatest rock & roll band, this = the output or even the basis on which a band formed, had in their DNA, America's roots! It doesn't even matter that we now know CCR formed in California, their DNA as a band transformed their birthplace but it more importantly brought forth the (soul) of get down and dirty) Rock & Roll in it's raw form!

HELL YEAH!
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Mamas & Papas
The Doors
Steppin Wolf
Jimi Hendrix
The MC5
Nirvana
Pearl Jam
Smashing Pumpkins
Green Day
Also what makes a band the greatest. Sales? Game Changer? That one masterpiece of an album? Longevity? These have all been talked about many times over.

Upon further review I think we need to clarify Rock vs Rock and Roll.