Have you ever read the Hyperion series by Simmons? I think it's incredible. It's a 4 book "series" but it's really 2 & 2. They are tied together but it's really 2 books, then 1 thread brings you to the next 2 books. Absolutely loved them. I have just picked up the first of another 2 book series he did. Not as good, but still decent.
I just started the last book in the series. Really enjoying them.
You should check out The Way of Kings by Brandon Sanderson.