I love all of their albums, but there's something truly special about the musicality and emotional impact of the songs and album as a whole for The Sound of Madness
There subsequent albums are fantastic, but have more ups and downs than the consistent high bar of The Sound of Madness
Similarly, I think Disturbed Immortalized was Disturbed's peak work, with The Light and The Sound of Silence being incredible peaks of their signature style and highly musical storytelling on a fantastic album.
Wow, I entirely forgot that Devour existed until just now. It blew my teenage mind when I first heard it. I also forgot how much I hated that every single store seemed to be playing The Crow and the Butterfly when you walked in.