A perfect song? What are your choices?

JJ Cale- "Magnolia"

Johnny Cash- "Sunday Morning Coming Down"

written by Kris Kristofferson

I always thought of "Stairways to Heaven" as a perfect song.

It has everything I found necessary in a (rock) song - slow part, great melody, powerful lyrics, strong verses, solos...

And most importantly, geniuses behind every instrument and Robert Plant's voice.

I wouldn't say it's perfect but I've literally played Cat Stevens' Portobello Road hundreds of times.

If we are limiting it to Cat Stevens, I vote for Sad Lisa.  Maybe even if we don't limit it to Yusuf.