Rejoice!Rejoice!
Emmanuel
Shall come to thee, O Israel!
Today's old people.

Okay, it's definitely in the top three, anyway. The Rolling Stones' Honky Tonk Women can conceivably compete for the title, as can Led Zeppelin's In My Time of Dying. These are fairly non-partisan statements for me. I am neither a Kansas nor a Stones fan. I don't have any of their albums. Led Zeppelin, on the other hand, is one of my favorites and I have their entire collection.
Now, if you want to suggest some others, let's get the rules clear. Candidate songs must be rock and roll, but that is wide-category. I would, personally, even include the Cure or Country Joe and the Fish. But, it is inappropriate to elect a song merely because you like it. For instance, I love Pink Floyd and have almost all their albums. But I wouldn't even include them in my top five. To be "up there", a song has to have something special that elevates it beyond the group by which it is performed (and Pink Floyd, much as I love them, are always Pink Floyd and their songs are always their songs.)
Now, look at Kansas' Carry On. This song has an energy and a spirit that simply takes it right out of Steve Walsh's and Keri Livgren's hands. Honky Tonk Women is also a good example. There is a guitar lick in that song which is of divine (or diabolic) origin. I refuse to believe that a human composed it without aid. Of course, Zeppelin never wrote any of their great songs, as dozens of impoverished black blues singers could attest, were they still with us.
So, that said, don't nominate a Kiss song. Kiss is rock, sure, but it's a gimmick. No Kiss song has any class. Same goes for hundreds of bands. I will tolerate the candidacy of Warren Zevon's Werewolves of London, though I would never nominate it myself. However, there will be no waxing poetic about his death. Warren Zevon's death (requiescat in pace) was not poetic. Johnny Cash dying - that's poetic. Warren Zevon just died. Stop acting like he was Lord Byron lost at sea and get over it.