If I was to name one book as my favorite of all times this has got to be it. It is hugely entertaining, incredibly moving and a multi-layered description of the burocratic hell that is Moscow in the early 20th century. Needless to say the book is a classic, there will ALWAYS be burocratic hells around.
It is quite brilliant to have satan come to save the world, to make bad things happen to bad people and to save the last remaining good souls from destruction.
But the real beauty of the book is the wonderful book within the book, the master's masterpiece, the story of Pontius Pilate. I often read these chapters by themselves for it is a wonderfully written story of Christ and his tormentor.
Anyway, if you haven't read it, please do. if you enjoy good literature you will not be disappointed.