Actually Children of the Damned and Hallowed Be Thy Name are miles ahead of the rest of the album for me. For me too, CotD is a top 5 Maiden song, maybe even third, behind Hallowed and Paschendale.
^ I'd be of this school of thought too. I'm normally not big into rankings and tiers, but this album for me breaks down into:
Top Tier: Hallowed, Children
Bottom Tier: Invaders, Gangland
with everything else somewhere in the middle. Not that any of the middle ones are bad, and some even have iconic status (NotB, RttH), but the top and bottom ones stand out pretty clearly to me.