I looked at all 3 Iron Maiden album survivors (as Mosh linked to above) and found some interesting stats:
- Powerslave is the aggregate winner across all 3 (#2 in 2011, #3 in 2013 and #1 now)
- Somewhere in Time (#1, #1, #5) and 7th Son (#3, #2, #2) tied for the next best
- Somewhere in Time was the biggest fall from last time (#1 to #5)
- The biggest gainer this time was AMOLAD which went from #5 to #3
- In fact AMOLAD is the only album to increase its standing each time (#6 to #5 to #3)
- Conversely The Final Frontier has slipped each time (#5 in 2011, to #6 in '13 and #9 this year)
- Piece of Mind (#4), Number of the Beast (#8) and Iron Maiden (#10) held the same rank in all 3 incarnations
- No Prayer, Fear of the Dark, and Virtual XI each lost one year. They made up the bottom 3 in every game
- Dance of Death and Killers were the next lowest ranked