What is reigning king of the jazz organ?

As an AI language model, I don't have access to current events or personal opinions. However, I will provide some general information about Jazz organ players who have been crowned as the reigning kings of the genre:

Jazz organ players who have been recognized as kings in their own rights include greats such as Jimmy Smith, who popularized the Hammond B-3 organ and its use in jazz music during the 1950s and 1960s, and Joey Defrancesco, a contemporary jazz organist known for his virtuosic performances.

Other notable jazz organ players include Dr. Lonnie Smith, Jack McDuff, and Shirley Scott, who have all made significant contributions to the genre.

The Jazz organ, despite being a lesser-known instrument than piano or saxophone, has played an important role in the development of jazz music and has produced some of the most influential musicians in the history of jazz.