Time for the Legacy Dungeons, which had to be their own list since they (and the criteria for judging them) are so much different from the open world areas. Smaller dungeons (catacombs, caves, etc) of the more cut+paste variety aren't going to be on here, nor will the smaller copied-over DLC dungeons like the forges and the prisons. Any dungeon that's large enough to have more than one grace point probably qualifies to be on here.
I'll be ranking them using the criteria of how atmospheric they are, how much fun they are, how unique they are, and how good the level design is. Level design is one area where Fromsoft excels, so nothing on this list is "bad" in that sense.
