I don't want to insult anyone, but I must admit, I'm not a huge fan of modern Maiden. I think the band has headed towards a more epic song-writing with more depth perhaps, but lost some of it's vitality and immediate energy. The symphonic sound and proggression has been highlighted and I can clearly understand why some would prefer it. Call me a retro-granddad, but I'll stick with the 80s and the "satanic", hungry, dangerous Maiden. That still doesn't mean there aren't any good songs on the new albums (RAINMAKER! Brave New World, Out of the Silent Planet, Paschendale...)
One big problem IMSO (not humble, but stupid!) with modern Maiden is that the ideas are good, but certain parts of the songs drag on way too long for my taste.