I loved the Hyperion Cantos so fucking much that I decided to read Simmons' other great sci-fi epic:
I finished ILIUM the other day and I just started OLYMPOS. I know I won't love them half as much as Hyperion, but I enjoyed ILIUM quite a bit. Imagine if the Greek Gods lived atop Olympus Mons on Mars, and recreated the Iliad down to the smallest detail. It's not as simple as that (if that sounds simple...) and sometimes it's all a little much, but there are two other main stories - one involving two biomechanical Shakespeare-loving robots on a mission to figure out what the fuck is happening on Mars, and the other involving humans on Earth who live very much like H.G. Wells' eloi - that made up for what the Trojan War story lacked.
It's chock full of incredible ideas, but it just doesn't have the character depth that made Hyperion my favorite science fiction book since Dune.