most powerful album

I'm really surprised no one went for this, but I'll have to say Piece of Mind. It was the first Maiden album I bought, but still. As far as most powerful metal album of all time, I would have to say Slayer's Reign in Blood. It's not really practical for most situations, though. Most people think Slayer is ridiculously hard core. So yeah, as far as Maiden, Piece of Mind for sure. Even though "Quest for Fire" is probably the weakest song in Maiden's history lyrically, it's far from their weakest musically, and that's what counts. It's metal, for shit's sake.
Hmm.. It's tough.

But I think Dance of Death (yea) is the most moving and empowering to ME.

No More Lies, Journeyman, Age of Innocence..

They are great. :edmetal:

Is DoD underrated?

Think so. :(

Come on the first album with bruce shall always be the most powerful Maiden record and possibly most powerful album period. Second is powerslave.
My fave lyric is not Maiden, but Bruce solo... when he sings:

The harlot womb of death spits out its rotten core!


For Maiden... perhaps it's If ya gonna die, if ya gonna die, if ya gonna die ya gonna die...
The most powerful Iron Maiden album for me will always be Somewhere In Time closely followed by Powerslave, Piece of Mind, Seventh Son of a Seventh Son and Number of the Beast