i'm not very into Abrahadabra, though it definitely has good songs on it (looking at you, song-named-after-the-band).
i jumped on board the Dimmu train around when Puritanical Euphoric Misanthropia came out. love that record, Death Cult Armageddon, Spiritual Black Dimensions, Stormblast MMV (heresy!), and Godless Savage Garden, but my favourite is Enthrone Darkness Triumphant. they were really at a height in their songwriting then, and it's been on and off each record since.