Based on your experience which sub-genre of fantasy is the easiest to write and which one is the hardest?

Hey guys,

So as I’ve gotten deeper into writing I have realized that to write on different genres and subgenres is very different. And some required a lot more skills while others less.

It seems that something like a High Fantasy would be the hardest to write. Based on my research so far the more worlds, settings and location the needs the more challenging it is for the author to come up with a believable world.

What’s your take?