Preferred this one to the Brief History.
Hawking made a bold statement in the first chapter of the book: philosophy is dead - many will argue fiercely against him. Still, I got his point. He wanted to show us his own personal philosophy which is built based on science and imagination, knowledge and passion.
Scientific analysis could be hard to get, but the overall idea is stunning. Now I see why I was so interested in Physics more than all other sciences: its imagination is without boundary.