Best Rock Song Ever!

Impossible to answer of course, but if it is Rolling Stones, I would say Sway. Mick Jones is just amazing on that song, and the whole band was just very together at that time, even though I'm not a big fan.

ADDING TO THE LIST (can’t believe I forgot these):

The Ramones:
Blitzkrieg Bop
I Wanna Be Sedated

And can't believe I forgot:

Led Zeppelin: WHOLE LOTTA LOVE

You could have a thousand suggestions and still get a thousand more from members here.
It's way too personal a thing to classify.

I like Cream's "Badge" or Blind Faith's "Sea of Joy". They both speak to me.