Jaws, in my opinion. The book is not bad, don’t get me wrong, but the characters in it are extremely unlikeable. I think Spielberg was right to eliminate some of the subplots and to buff the characters up to be more likable/relatable. Also, the end of the book kinda sucked. I won’t spoil it, but compared to the movie it’s extremely anti-climatic.

I still like both, the book is still a very good read and I understand why it was such a phenomenon, but I’ll always say the movie was better.