Rather than simply offer you my favorites, I'm going to ask you something:
I see Dune and Ender's Game on that list. Did you love those books?
If the answer is yes, are you a fan of Fantasy as well as Science Fiction?
If you answered yes to both, then you should check out 'The Wheel of Time.' The first book is 'The Eye of the World.'
It is the single greatest fantasy series in history in my opinion- FAR eclipsing that of LOTR and the likes. The final book comes out this January.
A quick summary if you're interested. There is something called the 'One Power.' Certain people are born with the ability to channel this. Three thousand years ago a man called 'The Dragon' gathered 100 male channelers in an attempt to defeat the Dark One, their equivalent of Satan. The result was the Dark One poisoning the male half of the One Power, driving every male channeler insane. Driven insane, the Dragon channeled so much of the One Power he moved continents and destroyed all civilization. He stopped the Dark One, but at an enormous cost. He merely sealed him temporarily. And his minions are still out there.
The book takes place three thousand years later. Three boys living in farmland eventually encounter an Aes Sedai, a female channeler. She claims the Dark One is looking for them and they begin an amazing journey to discover why.
Just for book one. There are 14 books, each one phenomenal. Funnily enough, I'm about to go read it right now. I'm rereading the series again in preperation for the final book coming out in two weeks after 23 years of waiting for the conclusion (Eye of the World was published in 1990). So excited.
It was written by 'Robert Jordon.' I would highly recommend this series above all others. I'd say at least try the first book to see if you like the others. And hey- it is really long with tiny print like LOTR and all sure, and it's definitely not an easy read... but at least it's more fast paced and a bit easier than such books.
[Edited on 12.28.2012 7:16 PM PST]