Silva
Arcane
Don't Valley wins on the atmosphere/theme aspect? I mean, never played but the tube walkthroughs show it's really atmospheric, and lots of people consider it one of the best in the series.valley of defilement has way too many poo poo monsters and bad hit detection
By the way, what do you guys think of DS3 Irithyll Dungeon? I've found it pretty atmospheric and mildly good design-wise. It does seem a weaker version of Tower of Latria though.