On that point... napoleon was not a massive or physically overwhelming man. Yet his force of will and determination led to more men meeting there deaths in battle faster (in a campaign, up to that point in time) than any other period of war in mans history.
Ghengis Khan was not a giant, or the most gifted in physical abilities among the steppe peoples... but his mental attitude to think outside the box and use Sun Tzu's "art of war" teachings, never back down, and accept conquered peoples cultures, led to him wiping 2/3rds of the planets human population out.
Both of these examples relied heavily on there charismatic personalities...
Revan did this early in his career during the mandalorian war. Before he really manifested his dual nature of force mastery.
In terms of power... what is power? The ability to wield it? Or the ability to command it?
Our history will prove time and time again...the ability to command power far overshadows an individual wielding physical power time and time again. (Although in our history an honorable mention to the latter leading to the former)
Revan could do both...he both commanded power from others including fleets from the mighty starforge across an entire galaxy... AND wielded a mastery of power in both the light side AND dark side that it would be revered and sought after by many generations... like we seek the holy grail, ark of the covenant, etc...
Revan is ultimately responsible for the rule of two, which bane established after finding the sought after holocron of revan and studying revans teachings.
This impacted the galaxy long after his "death" or "disappearance"
In the form of setting the stage for Emperor Palpatine to rule estabilish the galactic imperal empire an rule with absolute impunity.
My point @OP is that revan is the very defintion of overpowered... revan was gifted whether it was natural or through training or through sheer force of will, in EVERY aspect of the force, making him an equal in any aspect to all but the supreme grandmasters of said techniques.