Which leader Calvin or Luther do you think had a greater impact?

Both John Calvin and Martin Luther significantly shaped the Protestant Reformation, but many argue that Calvin had a broader impact on the development of modern Christianity and Western society. Luther's emphasis on justification by faith and the authority of Scripture sparked the initial break from the Catholic Church, while Calvin's ideas on predestination, governance, and church organization influenced various Protestant denominations and political thought. Calvin's theology laid the groundwork for Reformed traditions, which continue to affect religious, social, and political landscapes today. Ultimately, the assessment of their impact may vary depending on the perspective one takes on religion and society.