Originally posted by AncientPower
Kun has genuine strong feats against seriously high class opponents as a duelist. Malak is hardly a major duelist compared to the likes of Ulic whom himself is an exceptionally strong duelist with great feats of his own.
And yet Darth Malak became a much bigger threat to the Jedi Order then Ulic Qel-Droma. He must have great potential which he eventually realized and tapped into to become one of the greatest heroes of the Jedi Order during the Mandalorian Wars and later on proceeded to rule a Sith Empire with iron fist. Let us not forget that Darth Malak was the strongest Sith Lord in the Empire created by Revan after the latter's removal and his combat related accomplishments include victory over powerful Bastilla Shan in single combat.
So whenever we think about Darth Malak, we should ignore his embarrassing Alek history which doesn't do justice to the character who would rise to great heights in the future and represents his days of lack of decent experience and knowledge. Thanks to shortsightedness of some authors, Darth Malak's early history ended-up being mishandled. Mr. Drew might be a mediocre author but he does justice to his characters in his writings and I am glad that he took charge of Revan's story in literature after the disaster that was dubbed as Knights of the Old Republic comics.
Even if Darth Malak is supposedly lacking in martial aspects of combat (an assumption that I doubt personally), he makes up for such inadequacy with his command of the Force and raw power that he realizes during his later years.
Originally posted by AncientPower
Kun was unparalleled in his time and was drawing against Ulic using Ulic's own style against him. Kun has displayed high level proficiency in Djem So, even matching masters of that form. Ataru is another form he has shown use of, displaying high class acrobatic skill. He is a confirmed Niman master and has apparently hybridised the form in some way, almost appearing like a Juyo user.He has statements in the guide to weapons referring to him as an unstoppable combatant because of his combat tactics and precognition:
The belief that Kun wins duels because of his opponents' unfamiliarity with the weapon, is contradictory to the statement that Vodo never stood a chance against Kun:
In not one other duel does he use his dual-phase saberstaff.
Furthermore Kun is stated to and has shown that he has beaten Vodo repeatedly before and not just once.
As far as Force prowess goes instead of just repeating the previously stated most powerful accolades I would direct people towards these Force feats:
So not only has Kun displayed that even Jedi as learned as Odan Urr cannot sever him from the Force but we have yet another statement referring to him as the darkest power in the galaxy.
Here Kun displays exceptional command over the Force using levitation, a feat replicated by very few.
Here Exar Kun demolishes nearly 30 Tuk'ata at the same time with his Force Rage.
Here Kun displays mastery over the strongest Force Defense variant with no apparent concentration or effort, insteadly merely walking forward.
Here Kun drains thousands of Massassi and then uses that to empower the Sith Apparatus, unleashing his deadly spirit in a display exactly like Vitiate's return on Yavin IV. This is a feat he has replicated beforehand.
Exar Kun easily freezes the entire senate which at this time had over 10,000 members, this assembly was stated to be full. Inferring that Kun effortlessly froze over 10,000 beings before demolishing Vodo Siosk Baas.
There is much more and I am not even going to go into his spirit feats but Kun is an exceptionally powerful and skilled being.
Exar Kun have always been admired for his legendary dueling skills and power.
However, some of his accolades no longer sit well with the latest developments in the lore, which is a problem that the character's fans are not coming to terms with. Exar Kun can no longer be regarded as the most powerful Sith Lord in the galaxy and darkest power in presence of Emperor Vitiate.
As for Revan, he arguably surpassed every Jedi in power in history during the Mandalorian Wars:
Though the Mandalorian fought valiantly, in the end he was no match for the Jedi Order's most powerful champion. (Star Wars: The Old Republic: Revan)
NOTE: This accolade implies that Revan is the most powerful Jedi of his era and have possibly surpassed all Jedi in power throughout galactic history. He could be above the likes of Ulic-Qel Droma and Nomi Sunrider at this point.
However, Revan exponentially grew in power afterwards:
In their last meeting he had overwhelmed Revan completely; it wasn't even fair to call it a battle. Revan had grown since then. He was far more powerful now, but was he a match for the Emperor? (Star Wars: The Old Republic: Revan)
This exponential growth in power explains why Darth Malak stood no chance against Revan even after being fully prepared to tackle external threats on Star Forge and same goes for Darth Nyriss who was also one of the most powerful Sith Lords in the galaxy and easily defeated Lord Scourge and Meetra Surik in single combat, both of whom who were highly accomplished warriors and legends in their own right. This exponential growth in power also explains how Revan was able to cope with torturous situation spanning centuries and his capability to hold his own against some of the most capable and dangerous Strike Teams ever assembled in galactic history to eliminate fearsome threats. Revan was even able to dominate a Strike Team comprising of powerhouses such as Satele Shan and Darth Marr with his raw power, which is one of the greatest feats of power demonstrated in combat situations ever, apparently surpassed by only Emperor Vitiate throughout galactic history.
All are indications that Revan > Exar Kun