I prefer Run To The Hills, but it's a song that's forcedly a 'live staple'. It never worked live. In fact, Bruce's voice can get a lot annoying on this one, live. An easy show staple would've been Sun And Steel. It would work perfectly live. As catchy as The Trooper or Flight Of Icarus and all of that because Piece Of Mind didn't have any single to lead off the album, critics said back in 1983. It seems we're reading it all over again about The Final Frontier, but Maiden was never a singles band (except in the usa, but there, every band has to be a 'best of' act).