what is the best rock n roll song of all time?

I've been wanting to ask this for a long time. I grew up in the late 60's, 70's and the 80's, when rock n roll was it. Nowadays, what they call rock is not. All bands sound the same. When I grew up, you could turn on the radio, and you could tell a band after the first 3 notes. Now, every band sounds the same.

I think my parents used to say that to me when I was listening to Zeppelin.

As you can see, there is, nor will there ever be, consensus on the "greatest" rock and roll song ever. For me, though, it almost had to be Stairway to Heaven because the song epitomized the entire concept of "progressive rock". It also was the quintessential song by the what I consider the greatest rock band of all time (and many would agree with that - of course, many would not :)).

But even Zeppelin themselves considered Kashmir to be their greatest song (and I find it hard to argue with that as well).

But that just shows what is so great about music. It's all good.