My favorite band. Awaken The Guardian and Parallels are both within my Top 10 albums ever. And all would be right in the world if FW would bring Exodus, Guardian, The Apparition, Prelude To Ruin, and Epitaph back into their setlist.
Only "Night On Brocken" has a real Maiden feel to it, but it is still a fine album, and "Damnation" should be on any FW mix. "The Spectre Within" is where they started developing their own sound, with hightlights being Travaller In Time, The Apparition (a song which many claim to be one of the best Metal songs of all time), Kyrie Eleison, and Epitaph.
You already got "Awaken The Guardian". A masterpiece of music of any sorts.
"No Exit" is an excellent release, basic some nice Power/Thrash. Many point to "Silent Cries" as another highpoint of their career. "Anarchy Divine" is a nice Thrashy headbanging number, and "Shades Of Heavenly Death" is fighting it out right now with "Prelude To Ruin" over which is the heaviest song FW ever did. And of course, the epic "Ivory Gate Of Dreams" being 20+ minutes long and not boring once.
After that, they went with a more Progressive but still song orientated sound with "Perfect Symmetry", "Parallels", and "Inside Out". Then From "A Pleseant Shade Of Grey" onward (basically, when Frank Aresti and Joe DiBiase left the band), they went full on Progressive. While their newest sound is still excellent music, I wouldn't say its as good as the previous two eras of the band. But like I said, "Parallels" and "Awaken The Guardian" both are both in my top 10.