I've always thought of these albums as cousins- both criminally underrated. And I think Bastille Day and Headlong Flight are more closely related than any other two songs in the Rush canon.
But as brilliant as so many of the moments on Caress of Steel are, I still favor Clockwork Angels- just by a nose.
Headlong Flight is a song I think could have sit comfortably on an early Rush album...love it! Bastille Day more so, but its a win win whichever song you prefer with these two