Questions 767: Epic Fantasy Bigness

Tim asks: How big should an epic fantasy novel be, and what’s the expected length in other genres?

Resources Mentioned:
The Lord of the Rings by J.R.R. Tolkien
Conan the Barbarian Series by Robert E Howard
The Way of Kings by Brandon Sanderson
The Dragonbone Chair by Tad Williams
To Green Angel Tower (and Memory, Sorrow, and Thorn), part 1 and part 2,  by Tad Williams
The Chronicles of Thomas Covenant The Unbeliever by Stephen R. Donaldson
Mistborn by Brandon Sanderson
Caliban’s Hour by Tad Williams
Reave the Just and Other Tales by Stephen R. Donaldson