Seems like you mostly like anything that is well-written, so I'll just recommend the works I've read and felt like transcended genres and just became great books.
Ender's Game by Orson Scott Card
Hyperion and Fall of Hyperion by Dan Simmons
The Malazan Book of the Fallen series by Steven Erikson. (10 books at around 1000 pages a pop. Will keep you occupied, but is worth it. It's so good that almost everyone I know who've read all 10 is planning, have done or is in the doing of rereading the whole series)
Name of the Wind and Wise Man's Fear by Pat Rothfuss
A Song of Ice and Fire by George R.R Martin
Tigana by Guy Gavriel Kay
American Gods by Neil Gaiman (HBO-series produced by Tom Hanks incoming)
Heroes by Joe Abercrombie
Other great genre books are (That I've read):
Everything by Brandon Sanderson (Including a Wheel of Time series if you can handle the draught of action in the middle of the series)
Everything else by Joe Abercrombie
The Magicians and The Magician King by Lev Grossman (Begins as Harry Potter and evolves into something else that is magical, meta and brutal)
The Lies of Locke Lamora by Scott Lynch
All books by Jo Nesbø (Norwegian equivalent of Stieg Larsson)
Lots of other suggestions here
Things to avoid:
The Sword of Truth series unless you are a rabid Ayn Rand fan.
Eragon.