Best rock song of all times

All Along The Watchtower, Hendrix. It was actually written by Hendrix, he just used Dylan as a surrogate.
...Watchtower performed by Dylan and The Band is also way up there.

Voodoo Chile, slight return --really moves me. I live in the Northwest. If you've ever stood in Seattle, looking across at the Olympic Mts, you could imagine Hendrix wondering, tripping, on the majestic sceney before him. Water all around, small islands here and there, huge snow covered mountain across the way shrouded in clouds. He probably reached out, and with the side of his hand, chopped the side of the mountain- making islands.
Jimi lives forever in the Northwest and beyond.

Won't Get Fooled Again, The WHO

Queensryche : Silent lucidity

Best "symphonic" rock song ever heard. Acoustically pleasing, kicks ass while still a ballad.

With lyrics with real life meaning for the average, and brrrrrrilliant music, Its gotta be 'WON'T GET FOOLED AGAIN by 'THE WHO' (Moon/Ent/Dalt/Town), sung and played with all the verve, nerve, REAL anger, angst, deprivation, desperation that the yooth of the day suffered. AWESOME. Rock is Energy.
Compare 'THE WHO' verses 'The Rolling stones'. One band are slippers, pipe and armchair, the other is sheer 100% maniacal energy! IMHO, naturally.

Jdlepera got it right; Chuck Berry's "Johnny B. Goode". This song may have directly or indirectly inspired all the others listed.