You forgot to vote yourself!
This was a no-brainer for me. I may have better playing on other tracks, or better overall mixing, but in my mind, Hallowed ushered in a new era for the IMG. It was tight, all the instruments were up to par, I simply love the work with the chime during the intro...I've been told the solos kick ass, Jim did a great job singing (one of his best)...in short, it all came together well.
Other had a lot of good parts, had lots of good intentions...but fell short one way or another...or has come after Hallowed and merely 'tied' it as far as overall quality.
...plus its one of my favorite Maiden songs.