It’s gotta be WoD right? Legion 2nd but legion had some stinkers as well. The last 3 expansions have 1-3 decent dungeons each if that.
Gambit the only great dungeon from shadowlands.
Alge’thar and maybe Galakrond’s fall.
Waycrest manor has a great theme but some super tedious bosses and trash. Workshop was cool. I don’t really find any BFA dungeons “fun”.
Return to Kara is a banger, Blackrook hold banger, Darkheart banger, Maw of Souls is S of the S tier, Eye of Azshara is pretty cool.
The Burning Crusade has lots of dungeons that could be really good m+ dungeons I feel.
WoD, every dungeon is pretty fun.
I still want Stockades m+ 15 min timer.