I've read three of those, First Law, Mistborn and Stormlight.
- Mistborn I liked the first book of, but once it opens up into a more epic scale with fantasy creatures armies and half the characters are all powerful... just wasn't clicking as well for me. Still enjoyable enough to finish though.
- I really liked the descriptive writing style of Abercrombie, great characters and the narrator of the audiobook does a great job bringing them to life. Pretty consistent quality throughout the three books. One nitpick would be that I found some of the plot twists a bit convoluted. Like it a lot, second place. Need to start the new trilogy.
- Stormlight is my favorite of these. The writing isn't as good as Abercrombie, but the world building and scope is on another level. The climactic sequences of 1&2 are some of the most page turning sections of any fiction I've read, and on a book this size those are very lengthy sections. Has some clunky dialog at times though, particularly the characters meant to be clever. Had some of the same feelings with Oathbringer as I did with later Mistborn, but being more invested in the characters this time didn't matter as much.
I've had King killer Book 1 and the Assassin's Apprentice (different trilogy I know) in my Audible library for years but haven't gottten to them yet.