Trevoire
Ancient Mariner
Personally I've never liked the intro tape into bang thing. The sound from the intro is always better than the live mix that follows, and it's a bit one dimensional when almost EVERY tour starts like that.My opinion - Moonchild is the best opener song - the way the track builds up to an explosive intro for the band. Not many other Maiden tracks have that. Aces High a close second, and I'd be happy to hear it again provided Bruce's vocals are in good shape (possible but maybe not).
There are a lot of 'good' openers, but personally I think the best opening tracks are ones with a musical intro that allows the band to run out on stage for instant wow factor.. Pet peeves for me are when bands walk out on stage and it takes a minute to actually get into the song!