Some definitive classics in this list, and some that are ... well ... not classics. I'll try to rank them.
The great:
Brave New World: A great song. Great guitar melodies, great solos and a very singalong-friendly chorus. One of the best songs from the current lineup.
Rainmaker: A modern-day Dave classic in the vein of another great song of his. The solo is simply awesome and the song rocks the house down.
Still Life: An often overlooked song from Piece of Mind, this is one of Dave's best. A melodic intro, well composed verses, damn fine solos and the cool rhythm of the last verse. Also great lyrics in this one.
Judas Be My Guide: One of the best songs on Fear of the Dark. Fantastic chorus and solo.
The Prophecy: The intro and outro are both among the highlights on Seventh Son.
The good: What these modern-day Maiden songs have in common that they are good compositions, and they stand out from the other songs on their respective albums structure-wise. I just don't come back to these as often as I do with the above group. Not in ranked order:
Deja Vu: Another trademark Dave intro, good melodies. Simplistic lyrics sends it a few spots down from the top.
The Man of Sorrows:
The Man Who Would Be King: I really like the transition from the intro to the first verse. Also a creative solo. But the song as a whole doesn't have that little extra to take it into the top group.
The Nomad: A very good song, actually. Too bad half of it was written by B- .. sorry, the band which should not be named.
The Reincarnation of Benjamin Breeg: The mystery of who Benjamin actually is, doesn't lift the song from good to great, but it's among the better in this group.
The Thin Line Between Love and Hate: Some awesome singing by Bruce here, but the song has never stuck with me the way it has with some other people on here.
The decent:
Charlotte the Harlot: A fun song, typical of early-era Maiden, but not one of my favourites from the debut.
Fates Warning: I like the intro. The rest of the song is good, but it doesn't stand out much.
Two Worlds Collide: Some good melodic parts in this song, one of the better from Virtual XI.
Lightning Strikes Twice: Good build-up, but the verses and chorus fail to deliver.
Public Enema Number One: Doesn't stand out in any particular way, positive or negative.
The not that good: These two are among the weaker songs on two albums that are both in my bottom five, so ... you do the math.
Age of Innocence: The music in this one has never grabbed me the way the best Dave songs do, and the lyrics ... well, let's not go there.
Chains of Misery: Strange to think that he wrote this at the same time as he also wrote Judas.