>most of the posts are from gen3 to 6Alright, I'll give Johto some love.
Lake of Rage and Dragon's Den always felt unique to me.
The Den is a bit infamous for its ear piercing music
https://www.youtube.com/watch?v=91qulbGHLxEbut it always felt ancestral to me, with the old building in a lake-cave with dragons.
There Whirl Islands also have a cool atmosphere. You're completely alone in there as you walk down the maze. It feels really dangerous.
And there's the Illex Forest being always dark.