Seventh Son of a Seventh Son
A Matter of Life and Death
Somewhere in Time
Piece of Mind
Powerslave
Brave New World
The Number of the Beast
Dance of Death
The X Factor
Killers
The Final Frontier
Fear of the Dark
No Prayer For The Dying
Iron Maiden
Virtual XI
Something like that... I guess, it is VERY HARD to make a list like this. It actually feels a bit silly in my opinion, because music is fluid and not numbers. I would say the top 5 is at least pretty much at the same level, can't really pick a favourite. And I have a feeling, a really string feeling, that The Book Of Souls will end up very close to the top after it settles as well!
That's how I feel now, and I doubt it will change.