Best rock song of all times


Only one answer please.
Not the best written or the best musical complexity but the one that represents the rock.

My choice: Satisfaction - Rolling Stones

Reasons:
- first notes are like the 5th of Beethoven (when you hear those notes, everybody pumps up the volume)
- still very up to date
- a mix of rock and blues rock and Motown sound
- lyrics talks about disatisfaction of young people vs life, politics, money and women (even B Dylan like that song)
- music is very basic as a good rock song should be
ross2
'When the Levee Breaks'.

Led Zeppelin's take sounds like the end of the world. Out and out heavy Rock.

I don’t even know what "Rock" means. I know what Rock ’n’ Roll means, but my definition is different from that of younger Rockers, to whom Little Richard (Paul McCartney’s role model, along with Buddy Holly), Chuck Berry (John Lennon, Keith Richards, and Dave Edmunds role model), Jerry Lee Lewis, Carl Perkins, and Bobby Fuller mean next-to-nothing. Barrett Strong’s recording of "Money (That’s What I Want)" is as tough a song as there is (the tone of the guitar playing the song’s trademark riff is SO wickedly cool!), but it came out on Motown Records, so can it be Rock? The Beatles liked the song enough to include on their first album; their version is good, Barrett’s is great.

Is "Like A Rolling Stone" Rock? It meets the op’s criteria, and still never fails to raise the hair on the back of my neck. To me, it’s the ultimate anthem song, along with Bobby Fuller’s recording of "I Fought The Law" (written by Sonny Curtis of The Crickets). The Clash’s version of "IFTL" is definitely Rock, and simply dreadful. What a terrible, terrible band. I had to keep that opinion to myself when I was in Pearl Harbour’s band, as she had been married to their bassist Paul Simonon. One of the worst professional musicians in the entire history of recorded music, his "style" was to just play the root note of the chords the guitars were playing. A real knuckle-dragger ;-) .

@bdp24 - I make the same distinction you do, between rock and roll and 'rock'- the former, to me, is the stuff from the '50s and after, Elvis, Jerry Lee Lewis, Chuck Berry and all that it inspired- mixing R&B, gospel, country, etc.  JLL Live in Hamburg is one of the great  recorded performances, though not the best sounding recording. 
To me, in my fractured view of music history, rock (as opposed to rock and roll) grew out of the psych period and went in several directions-- from the very heavy stuff which is now considered proto metal (the genres labels can be constricting, i like some of the early stuff from Sabbath, Zep, Purple in the post-1970 era), hard rock (many of those UK bands, like Free, started as blues rock bands and morphed into a more radio friendly style), and stuff that is now labelled 'classic' rock.