Why is Lord of the Rings the best trilogy of the world?

Rating: 10/10 (16 July 2017)

There are many reasons to Lord of the rings to be the best trilogy, some of them is:
It was written by Tolkin:
Tolkin was( in my opinion) a genius, he created the most beautiful fantasy world and one of the most detailed (even more than I'd like);
The movies are loyal to the books:
Most of the trilogy was faithfully constructed of books, of course some details needed to be changed to make a good movie, but nothing too big.