I'll second the Frank Muller recordings, and the Dark Tower series, especially the ones he narrated. Muller was incapacitated by and eventually died from a motorcycle accident after recording Wizard and Glass, so George Guidall finished the series.
I enjoyed Sanderson's Mistborn trilogy, starting with this:
I listened to all 3, but haven't tried the follow-up trilogy set a few hundred years after the first.
I like LONG audio books (I like to stretch out my 12 Audible credits/year, and I drive a lot), and Steven King delivers if you're into him. I liked Duma Key
...read by John Slattery (recently of Mad Men fame)
I also liked the First Law trilogy that YakAttack mentioned above.
I'm currently having fun with Neal Stephenson's Reamde