I'm a long-time Maiden fan, but embarrassingly enough, a "play the classics" fan. I went to the San Antonio show this weekend (no, I am not the kidnapper posting from jail) and discovered TBoS album and Empire as a result of the show.
I side with those who feel it's the most epic IM song in their repertoire. I was blown away at the first listen and it hasn't diminished over the last 10 times I have listened to it today. I wouldn't change a thing.
I discovered this site (and the fact that the R101 tragedy was an actual event) through researching Bruce's inspiration for the song. I'm glad I did. I've read every post on this thread and have learned a lot.
The reason I signed up was to post the one comparison I haven't seen made yet. I don't know if anyone is familiar with Bloodrock's D.O.A. but the descending bass line behind the SOS section and the dissonant descending part after the 14:25 piano riff (the crash) seem like definite homages to the ending finale to that song. Oddly enough, that song is also about an air disaster (not to spoil the details for anyone who is going to seek it out). Throughout EOTC, there seems to be a feel that resonates like D.O.A., maybe it's the same key, chord progression, the subject matter, the pained vocals, something. I don't know.
If anyone is familiar with that song or wants to search it up, I would be interested in seeing if it's just me or anyone else hears it.