I may just tackle the Empire series again after I finish my latest re-read, which currently is 'Murder In LaMut', which is, IMO a much maligned book that's really a lot of fun if one is willing to read it for what it is rather than expecting it to be a 'typical' REF.
As well as an in-depth look at Kingdom politics, there are some real laughs in this book too, with the Three Stooges fighting as mercenaries in the riftwar...