An ironic thing about the Mistborn is that Sanderson talks about not wanting, not being able to write a basic fantasy story with farmboy and whatever else (the standard hero's journey) in his Mistborn annotations. The irony is that the Mistborn series is a perfectly good example of the hero's journey, matching it pretty much perfectly, point to point. I do not know if Sanderson is aware of this.
Anyway, i reckon most who like Mistborn like the worldbuilding and the action, perhaps the characters (i don't actually like most of them), not Sanderson's writing. At least it isn't utterly terrible, i've see so much worse writing (like in every possible way) in published books.
EDIT at least, this is how i understood it. It could be that Sanderson had no problem with writing a basic hero's journey, just with the standard farmboy setting. Either way, Mistborn follow the structure rather directly.
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Still struggling with Blue Mars. I like the Mars trilogy quite a lot but man... the final book drags on. Perhaps i simply remember it too well, i keep skipping pages. At times it (everything after the first few chapters) feels like a too long "Where are they now?" epilogue.
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Not sure what to read afterwards. My re-read of ASOIAF stopped in mid book 3 part 2, and i have no interest in continuing it.
I might re-read Dune yet again though i read it like once per year, ever since i was... what, 12 (ie i've read it yearly for some 12 years easily now)?
Otherwise, no ideas. If i go to a bookstore or library, i check the blurb and i'm usually instantly turned off. And if i'm not, then i start wondering about it too much otherwise, or it ends up being something i think i don't like and therefore i don't want to read it.