MARTIAL ARTS
Over the course of his life, Rahm Kota served many different causes, be it the Republic, Rebellion or Jedi. However, there is one consistent: his skill with the blade. Unlike most Jedi, Rahm Kota was extremely aggressive and proactive, practicing the seventh Form. Compensating for his chosen forms weakness, Rahm Kota's skill was such that he could slice through waves of storm-troopers and even stalemate the exceedingly powerful Galen Marek, only being defeated through a combination of exhaustion and Marek's superior power in the Force. Skilled with a variety of other weapons and unarmed combat, Rahm Kota proved himself to be skilled in the gladiator arena, as well as more traditional combat fields. As the Jedi Order of Rahm Kota's time required that any Jedi mastering form seven have a good grasp on at least three other Forms, it is reasonable to believe that Rahm kota was experienced in multiple forms, if not all seven.
Qui-gon Jinn was a master swordsman, often described as one of the best in the Jedi Order. Jinn was a master of the acrobatic Form four, although his advancing age forced him to retool the Form to fit a more strength based fighting style. Even before then, considering who his Master was, I believe Jinn's style was heavily influenced by Form two. A masterful duelist, Jinn has proven himself on several occasions. He was one of the very few Jedi capable of defeating the skilled Jedi killer Aurra Sing. He has also clashed with his former apprentice, Xanatos, on multiple occasions, most often coming out on top against the skilled Dark Sider. Most impressively, Qui-gon Jinn went head to head with the lethal Sith assassin Darth Maul for almost fifteen straight minutes, only being defeated when his stamina gave out. However, Jinn did have his weaknesses. His Master was able to defeat him with little effort and he was ultimately incapable of overcoming Darth Maul.
When exaiming these two Jedi Masters prospective skill sets, it becomes clear that a purely martial arts engagement between Jinn and Kota would likely end in an impasse. Despite Kota's lethally aggressive style, I believe Jinn's showing against Maul proves he could hold off and defend against Kota's similar Form seven style as long as his stamina holds out. On the other hand, the fact that Kota forced Galen Marek to resort to his Force powers implies that anything short of an absolute Master will be incapable of overwhelming Kota outright. Both Kota and Jinn are also described as master swordsmen, with a good deal of refinement and skill to back up there staunch defenses and overpowering offenses. Tactical approaches do not change this standing, as both Jinn and Kota are straight forward martial artists, preferring to deal with problems as they arise. In short, neither Jinn or Kota can really claim the martial arts advantage, as they fight in a similar fashion with a similar amount of ability to a similar level of effectiveness. I declare Rahm Kota and Qui-gon Jinn equals in terms of martial arts.
FORCE POWERS
Despite wielding a green bladed Lightsaber, Rahm Kota was certainly not a Jedi Consular, or at least not a traditional one. Primarily being focused on combat, Rahm Kota's Force powers remained comparatively underdeveloped. His telekinesis, self augmentation and telepathy was capable, if not anything to right home about. I also believe that Kota mastered Force sight, as losing his vision did not appear to affect his fighting style much. Aside from his temporarily lose of his Force connection, there really isn't anything else to say about Kota.
Although his skill with a Lightsaber was advanced, Qui-gon Jinn's power in the Force was nearly legendary. Jinn could augment himself with the Force to overcome his advanced age, at least briefly. His use of telekinesis was basic but powerful, although Jinn was mostly unwilling to use it in suture with his blade. His telepathic abilities were highly refined, with Jinn often being criticized for an over reliance on Mind Tricks. Possibly his most outstanding ability, Jinn was the first Jedi in centuries to achieve oneness with the Force, a skill he later taught others.
In all honesty, there isn't much reason to discuss Kota and Jinn's respective power in, with and against the Force. Jinn is certainly more knowledgeable and enlightened when it comes to the deeper aspects of the Force, but this is a contest of combat viability, not spirituality. Jinn's deep connection to the Force doesn't actually afford him any ability's beyond the standard Jedi Master fare and, ironically, Kota's greater focus on more mundane and practical aspects of the Force might actually surpass Jinn's abilities in this regard. However, as things stand, both these Masters are much more willing and likely to resolve conflict through there skill with a blade than overpowering displays of the Force. I once again declare Rahm Kota and Qui-gon Jinn equals, this time in the Force powers category.
PHYSICAL SKILLS
Rahm Kota was a middle aged human male in extremely good condition, at least for a man of his years. He was in extreme physical condition, surviving in a brutal arena battle for days on end without rest, which indicates an insane level of endurance. Due to wounds sustained during his battle against Vaders secret apprentice, Galen Marek, Kota was blinded.
At the time of the battle of Naboo, Qui-gon Jinn was a Human male exactly sixty years of age. Due to his old age, Jinn was no longer capable of the advanced agility he demonstrated in his youth, although he compensated for this with a good deal of physical strength. Although his endurance was good for a man of his years, Jinn's stamina still had it's limits.
At last, a clear cut advantage. For a man of his years, Jinn is in amazing shape with enough speed and agility to match much younger warriors and, although it is far from perfect, his stamina is passable, not to mention his exceptional physical strength. However, Kota has shown just as much speed and agility, almost as much strength and a near inhuman level of stamina. The ability to go days on end in a brutal combat environment without rest is a feat not many, old and young alike, can match. In terms of pure stamina and an unwillingness to die goes, the only ones who really have Kota beat are Darth Malgus and Tol Braga. Needless to say, Kota can take anything Jinn throws at him and keep going, long after Jinn has collapsed from exhaustion. I give Rahm Kota the physical skills edge.
WEAPONS & EQUIPMENT
Rahm Kota, despite most defiantly not being a Jedi consular, was equipped with a emerald bladed Lightsaber.. Kota also wore a suit of battle armor.
Qui-gon Jinn's weapon of choice was a simple hilted, green bladed Lightsaber that signified his strong connection with the Force.
Niether Kota's or Jinn's Lightsaber have any inherent advantage over the other Masters weapon of choice. Kota's armor does not provide any protection against Lightsaber blades, meaning that it won't be a game changer either. In the end, Rahm Kota and Qui-gon Jinn are dead set equals in terms of weapons and equipment.
THE VERDICT
Unfortunately, I think you all have a pretty good idea of where I am going with this. A martial arts duel between these two would almost certainly result in an impasse, and there prospective Force powers would not do much to change this. There completely standard armament does nothing to offset this stalemate. In short, who wins this battle comes down to who can keep on there feet longer, and in that regard Rahm Kota leaves Qui-gon jinn in the dust. Visually, this battle would play out in the same fashion as Anakin vs Kenobi and Qui-gon vs Maul. It would be a battle of equals, with neither truly capable of claiming the High ground. However, as the fight wears on, Jinn wears down, and ultimately fatigue and exhaustion causes him to slip up and make a mistake, with fatal consequences. Now, of course, this is just one possible scenario. It is entirely possible that Jinn could overcome Kota and take him down before his energy runs out. However, it is equally possible that Kota would find a way around Jinn and take him down before the fight progresses to that point. It is simply my opinion that the most likely scenario is Kota winning a war of attrition, giving him an eight out of ten chance of victory, when combined with his other opportunities for winning. I delcare Jedi Master Rahm Kota the winner.