Home is a classic, because it comes from a classicky-classic album that's so classic it classics above all the other classics, classically classicking like a pro.
Why, Home is nice, but it's mostly a blues jam. A good one, but out of those "central" tracks on SFAM, I prefer Beyond This Life by a long shot. It's just that BTL has better riff, a more intriguing instrumental section (including the funny Zappaesque madness) and is in general catchier. And no "immersive soundtrack noises". And no "He's my brother // But I love her". (though with "Dreadful ending: Killer died!")
ITPOE is an actual prog epic, with build-ups, subdued sections with hypnotic atmospheric pulsations, catchy tickle-sections coming full circle, y'know... actuall progress. But sure, let's go with the metalhead choice.