(Offered with the warning that I'm a big fan of Wurts, so no small bias here!)
Hmmm, I haven't read Hobb (yet
). Of those I've read, she's a little unique.
In some respects, (sheer number of characters developed within plots, number of separate plots addressed "concurrently", etc.), Tad Williams
Shadow series has similarities to Wurts'
WoLaS books. Even with that comparison, though, if one were to put a random paragraph from each author side-by-side, you'd still be able to tell which one is Wurts pretty quickly....
I loved the Empire Trilogy, ben1xy, and as with that series, you have to give the first book of
WoLaS, Curse of the Mistwraith a few chapters or so to get the foundations in place. I don't think you'll be disappointed, however.
Finally, if you wanted to sample some of her other stuff without diving into a many-book series right away, the Cycle of Fire series is shorter, and precedes the Empire series in her writing career. Her individual books (e.g, Sorceror's Legacy, Master of Whitestorm, etc.) are pretty decent, too.