From all the ones I've read, I found the magic system of "Suprem Magus" complex and interesting. If you like that you should give it a try, but it's a long story.
I derailed a bit there, I was judging the quality of the drawing and the research he can put into his work, not the story by itself, that what I found weird.
@SailusGebel I'm not judging the story by itself, and there a lot in that case, Masashi Kishimoto are the same to be honest, he did Naruto but the other work are meh, his brother did it better in that case of multiple work, but none get the success of Naruto.
It's weird considering that the author of Übel Blatt draw some amazing page for it. And in term of research, he did a lot for Übel blatt, even travel to german to visit some castles.
Maybe he just don't care anymore after ending Übel blatt :blob_hmm_two:
It depend the isekai, but mostly the ones who use the skills/levels system use the gods of the world as an excuse. The gods made those rules, either before or after some earthling come into their world with their experience of games.
I mostly read Wuxia/Xianxia/Xuanhuan, so, for me it's when the two are somehow equal and do anything for the other (Tang Wulin and Gu Yuena), even if the other don't see it at first or even feel betrayed (Yes, I'm talking about Xia Qingyue!).
My goal is just to write a story in that genre, and thanks for your answer, but the SAO and SLF routes don't interest me at all.
And, yes, Litrpg feel more like "do whatever" that why I think it have more freedom in term of writing.
And having him going into a dungeons he already know from the beta and done hundred time only to find this time there some details that change compared to all his try on this specific dungeon.
Something like in the legendary moonlight sculptor where he find a hidden dungeon inside a dungeon
I don't know yet, but I though of having him be a beta tester before the official launch, and instead of grind level like other he stayed in the range of the 1 to 20lv to try a lot of things, like which class/race are better for him wich one are compatible, the dungeons etc.