So, I still ponder every now and then what it is I find so amazing about this band, despite the several legitimate criticisms raised against them. The melodies are a part of it, but there's something more that leads me to consistently consider them one of my favorite bands ever, and I'm pretty sure it has to do solely with their '97-'99 material (for clarification: EDT, GSG and SBD).
It's most likely a combination of the keyboards and the hollow/echoey production style that does it for me. Those two elements seem to create a cathedral-like atmosphere that taps into this whole pool of spiritual, magical and 'Old World' imagery, and that's what really makes those albums a ridiculously immersive and rich experience. I assume Zeph will agree with me on this.
I can never quite keep track of why exactly this band gets so much hate from even people of relatively good music taste, but one of the most salient criticisms seems to be of the 'straightforwardness' of their melodies and song structure. I'm just wondering if that straightforwardness isn't part of the atmosphere itself, as it seems that the bombastic songwriting is very much a part of this flowing, expansive 'Old World' overtone in the music. The typical expectation of black metal song structure seems to be that it be 'murky' or 'inaccessible', but I just don't see that working for this type of music. If you substitute in Emperor's song structure, for example, I think it would actually remove a lot of the elegance by way of 'brutalizing' the sound.
If any anti-Dimmu people out there are willing to weigh in on this thought, I'd be interested to hear your commentary.