I love the Black Daggar Brotherhood.. J.R. Ward
I've just started reading "Titus Groan" by Mervyn Peake. It's the first in a trilogy, this might be something special.
Codex Alera by Jim Butcher.
Book? They still make them? LOL
The Dark Tower because of its non-predictability. The seventh and last book redefines unpredictability. :)
Chronicles of Narnia
Or the Screwtape Letters.