Just finished the last book of the original First Law trilogy. I have some very minor gripes (spirit talking, the final book perhaps losing a little steam towards the end) but overall I can't reccomend it enough.

It's a masterful exercise in showing how perspective shapes how we see characters; by the end half the characters you've been rooting for are evil, and you start to wonder if you had the Gandalf and the Sauron the wrong way around.