Brave New World
One of Maidens best sounding albums IMO, crisp, fresh, bombastic, inspired. 3 tunes would make my Top 20, if such a thing existed and at least one would make my Top 10; Brave New World, Blood Brothers & Thin Line. The only tune I don't really like is The Nomad and even that has some totally amazing, stolen music in there. There are some unique/unusual (for Maiden) atmospheric moments on here which I love eg. end of Thin Line, Beckett bit of Nomad, BB. Plus, I thought The Fallen Angel was the heaviest groove they had ever done when it came out. The final chorus/instrumental/outro of Thin Line blows my mind, euphoric and it has a kind of nostalgic feel to it that just sweeps me away. And the triple lead bit before the final chorus of BNW is cracking.
AMOLAD would come in second but I listen to it much less often as, like many here, I feel it is better served when listened to in one go whereas BNW is more accessible and the songs can appreciated quite well in 'shuffle' mode. Not that this 'accessibility' makes BNW any better, I'm just making the point.
Over recent times (last 6 months, say) DOD has gone up in my estimation, TFF has gone down but this question has made me realise that I still a not sure about TBOS. I haven't listened to it start to finish too often. Chances are it would land in the middle.
BNW
AMOLAD
TBOS
DOD
TFF