Most Perfect Rock Song Ever?

I've been thinking lately. I think I know the most perfect rock song ever. We're not talking in terms of popularity. Just in terms of being a great great song. Builds up well, ends well.

What do you think is the most perfect rock song ever?

My vote: Pearl Jam - Corduroy

Gotta give real high vote to Soundgarden - Overfloater though. Damn fine rock song as well. But I think Pearl Jam edges it out by a bit.

Now it's your turn to tell