Who is the greatest rock and roll band of all time?

I mentioned the Allmans early on....they were a very unique band, they were making fusion music that the idiots at RS and other rags were calling "southern rock"....couldn't be further from that description....most will never know the greatness and how much Duane Allman was missed.....Derek and the Dominoes had his sound all over it, moreso than even Clapton IMO....

I'll follow that by saying that the Allman Bros former guitarist (Derek Trucks - nephew of the drummer Butch) is the greatest slide player on earth and his band with wife Susan Tedeschi is the best band in the world right now....IMO of course....
And along the Allman Bothers lineage and influence, I'll add Robert Randolph as the best pedal steel guitarist. Tears of Joy is a joy to behold, and Randolph lists Duane Allman as his strongest influence