These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Awesome Music: As one might expect from the band's long career, there is a pretty large amount of this. Soulside Journey, A Blaze in the Northern Sky, Under a Funeral Moon, Transilvanian Hunger and The Underground Resistance stand out as particularly strong releases.
As mentioned below, the band's second stint on Peaceville certainly qualifies.
Ravishing Grimness and especially Plaguewielder. The songs on these releases are way longer than the songs on most other Darkthrone releases from the surrounding time period, and the songs are a bit more technical as well. Opinions remain divided about whether these changes were for the best.
Goatlord. Opinions are divided about whether it's better with or without the vocals (which are... unconventional, to say the least).
Is the band's incorporation of crust punk and traditional heavy metal influence since re-signing to Peaceville a welcome rejuvenation to a band whose sound had been stagnating, or is it an insult to the legacy of a once great band? For that matter, there are some fans who consider this material to be superior to anything the band had done previously.
There are also a handful of fans who prefer the band's Technical Death Metal sound on Soulside Journey and the instrumental Goatlord to any of the band's black metal works.
Magnum Opus: Generally considered to be either A Blaze in the Northern Sky or Transilvanian Hunger, though, as mentioned above, opinions can vary.
Fenriz's and Nocturno's reactions to most rock and metal music that has come out after the early 90s. ("It went plastic in '94")
What Do You Mean, It's Not Political?: After the Transilvanian Hunger controversy led to accusations of Nazism, the band's Panzerfaust album included the statement "Darkthrone is certainly not a Nazi band nor a political band, those of you who still might think so, you can lick Mother Mary's asshole in eternity." So yeah.