For me, "The Talisman", no question. Loved it the first time I heard it, love it even more now. A wonderfully evocative opening before you're dragged through six or seven minutes of excellent non-stop metal without being given much space to come up for air. A great narrative, some of Bruce's best vocals on the album, and an excellent live version on En Vivo.
Second for me would probably be "Coming Home", for a reason I can't quite explain. I find it oddly alluring.