Who was the most prolific and best-loved hymn writer of 19th century?

The most prolific and best-loved hymn writer of the 19th century is Isaac Watts.

Here's why:

* Prolific: He wrote over 750 hymns, many of which are still sung today.

* Impactful: His work had a significant influence on the development of English hymnody, and his hymns were translated into multiple languages.

* Beloved: His hymns are known for their simple language, clear theology, and heartfelt devotion. Some of his most famous hymns include "O God, Our Help in Ages Past," "Joy to the World," and "When I Survey the Wondrous Cross."

While other 19th-century hymn writers, like Fanny Crosby, are also highly regarded and popular, Watts's influence and legacy remain unparalleled.