The Great Dune Trilogy by Frank Herbert
Best Science Fiction Series
413 books — 1,090 voters

J.R.R. Tolkien 4-Book Boxed Set by J.R.R. TolkienThe Eye of the World by Robert JordanGardens of the Moon by Steven EriksonAssassin's Apprentice by Robin HobbMistborn by Brandon Sanderson
The Best Epic Fantasy (fiction)
4,207 books — 25,718 voters
Assassin's Apprentice by Robin Hobb
Five Star Fantasy Books
1,813 books — 2,140 voters

The Lord of the Rings by J.R.R. TolkienDon Quixote by Miguel de Cervantes SaavedraDune by Frank Herbert
Big Fat Books Worth the Effort
1,874 books — 7,000 voters

The Way of Kings by Brandon SandersonThe Eye of the World by Robert JordanThe Fellowship of the Ring by J.R.R. TolkienGardens of the Moon by Steven EriksonThe First Law Trilogy by Joe Abercrombie
Real Epic Fantasy
165 books — 408 voters
Dune by Frank HerbertEarth Abides by George R. StewartSnow Crash by Neal StephensonContact by Carl SaganI Am Legend by Richard Matheson
Best Science Fiction
3,651 books — 6,973 voters

The Eye of the World by Robert JordanThe Way of Kings by Brandon SandersonHarry Potter and the Sorcerer's Stone by J.K. RowlingThe Fellowship of the Ring by J.R.R. TolkienA Game of Thrones by George R.R. Martin
Best Series
3,359 books — 9,435 voters
The Lord of the Rings by J.R.R. TolkienHarry Potter and the Sorcerer's Stone by J.K. RowlingA Game of Thrones by George R.R. MartinStorm Front by Jim  Butcher
Best Fantasy Series, Trilogies, and Duologies
2,072 books — 11,673 voters