* Charles Grandison Finney: Known for his powerful, emotional sermons and his emphasis on individual conversion and social reform. He led revivals across the United States, particularly in the Northeast, and his impact was significant.
* Jonathan Edwards: While technically part of the First Great Awakening, his influence continued into the Second. His theological writings and fiery sermons focused on the dangers of sin and the importance of individual religious experience.
* Dwight L. Moody: A later figure, Moody gained immense popularity in the late 19th century. He led massive evangelistic campaigns and founded the Moody Bible Institute in Chicago, which continues to be a major institution of evangelical education.
* Peter Cartwright: Known for his fiery sermons and his ability to connect with frontier audiences. He traveled throughout the American West, preaching and establishing churches.
* Francis Asbury: Although more prominent during the First Great Awakening, Asbury's legacy and continued influence extended into the Second. He played a significant role in establishing Methodist churches across the United States.
Ultimately, the most popular preacher would depend on the specific region and time period within the Second Great Awakening.