I never considered HYF to be a ROCK album. Do you?
I do in the broadest sense; it's not in the sense of, say, Iron Maiden's Powerslave.
But I think it's one of Rush's best in terms of songs. I understand this might be blasphemy, but if Geddy and Alex WERE to ever do anything with their music in the future, I would LOVE to see an acoustic version of that record. I just think some of those melodies are the strongest in their career, and maybe the instrumentation choices obscure that.
Second Nature; every time I hear that it sticks in my head for DAYS.