Louis XIV and Charles II were both powerful rulers during their respective reigns. Louis XIV, also known as the "Sun King," ruled France from 1643 to 1715 and is known for his absolutist policies and his centralization of power in the French monarchy. Charles II, on the other hand, ruled England, Scotland and Ireland from 1660 to 1685. He was known for his restoration of the monarchy after the period of Oliver Cromwell's Commonwealth, but he also faced several challenges to his power during his reign.
In terms of the overall power and authority they held, Louis XIV was considered to be more powerful. He was able to exert a great deal of control over the French government and society, and his reign was marked by a number of significant cultural and military achievements. Charles II, on the other hand, faced more challenges to his authority, particularly from powerful noble families and religious groups, and his reign was marked by more political instability.
It's worth noting that the nature of power can differ from one context to another, and the comparison of power between Louis XIV and Charles II is not straightforward. Both were powerful leaders with different policies, strategies, and constraints.