An example of a Jedi swordmaster was Mace Windu, considered as such because he was a master of all forms of lightsaber combat and due to his mastery of Vaapad, which he created.
Form I: Shii-Cho
When learning lightsaber techniques, a Jedi or Sith apprentice is trained to recognize all seven forms of combat. Shii-Cho, also known as Form I, is the oldest and most elementary form of lightsaber combat developed by the Jedi Order.
Star Wars has a total of seven forms of lightsaber combat. By the prequel era, all Jedi seem to be trained in forms I and III, but as Padawans in training, they are encouraged to experiment with other forms in order to find the one that suits them the most.
In fact, Yoda was trained in all seven forms of lightsaber combat and had full mastery and knowledge of all of them. He was considered to be the best instructor at the Jedi Temple when it came to lightsaber combat, knowing which forms were most appropriate for each of his students.
Anakin Skywalker mainly used one lightsaber form when he was a Jedi Knight, but Darth Vader mastered three, making him more dangerous than Anakin.
Through the Force, Yoda was considered to have mastered Form IV to its highest level. He used it in almost all of his battles, and his mastery of the style caused others to describe him as virtually unstoppable against most opponents, including Separatist battle droids, despite his small size and advanced age.
Galen Marek is the only one who came close to destroying the Sith Lord, thanks to his vast knowledge of Vader's fighting tactics through the many hours they trained together.
Juyo was described as the most vicious form of lightsaber combat and was said to be filled with both fury and "malignant grace." The form was given the title of the most difficult and demanding form in all of the lightsaber combat.
The Forbidden Forms were forms of lightsaber combat used by the Sith during the Sith Wars. According to the testimonies of the Jedi Cervil the Uncanny, lightwhips—a lightsaber variant with a flexible blade—were used to defend against Sith Lords who utilized the forms.
Kylo Ren's lightsaber form was something of a hybrid, which blended three styles together: Djem So, Juyo, and Niman. Djem So used an irregular reverse grip and was meant for practitioners who loved fighting with a more offensive edge - a perfect fit for Ren.
Arguably, some of the rarest types of Jedi were the so-called Iron Knights. These are members of the Shards species - crystals with a brain of their own. They were Force-sensitive and all trained under the tutelage of Jedi Master Aqinos. The Shards had droid bodies, similar to that of General Grievous.
Master Yoda has risen above all others to claim the top spot as the most powerful Jedi of all time and the true chosen one according to IGN's audience. He won pretty handily as well, as he was victorious in 89,756 of his 95,243 battles and had a win percentage of 94.2%.
Yoda. Yoda was a wise, experienced, and powerful Grand Master of the Jedi of an unknown species and the oldest known prophet in existence (having lived at least 900 years), considered the wisest and most powerful Jedi Master within the Star Wars universe.
Billaba became Windu's Padawan and trained under the Jedi Master in the ways of the Force. During her training, Windu allowed her to study Form VII variant known as Vaapad. She eventually became a Jedi Knight, renowned for her skills with a lightsaber and favored Form III when teaching other Jedi.
During his years as a Jedi, Obi-Wan Kenobi fought with three lightsabers. His first had a blue plasma blade and a hilt similar to that of his master, Qui-Gon Jinn. Obi-Wan used this weapon until Darth Maul kicked it into a deep shaft on Naboo.
It appears rarely in the Star Wars universe—so rarely, in fact, that the current canon recognizes only one carrier of a white lightsaber. Ahsoka Tano, the former Jedi Padawan who aided in the rebellion against the Galactic Empire, is acknowledged as the sole possessor of the white lightsaber.
Other than Lucien Draay, Meetra Surik, Obi-Wan Kenobi, and Kit Fisto, Shii-Cho had many advanced and/or specialist practitioners. In more recent years, the form was mastered by the Jedi swordmaster Cin Drallig along with the other six forms.
Form IX: Kadeesh was a Form of lightsaber combat mainly focusing on the use of brute strength rather than Force-assisted movements or fancy and unpredictable parries.
Vernestra was enough of a prodigy that she eventually attained the rank of Jedi Knight at the age of only fifteen, making her the youngest Knight in a generation.
Red lightsabers are the weakest, according to a Star Wars study conducted at the University of Leicester regarding lightsaber colors. Decades of Star Wars lore has dictated that the red lightsabers favored by The Sith offered greater offensive capabilities than the softer colors favored by The Jedi.
Palpatine mastered all seven forms of lightsaber combat but preferred Form VII, Juyo. This seventh form was ideal for Sith Lords, utilizing their aggression for a ferocious form that favored offense.
Can't Stand - Mace Windu. Some say that Mace Windu is one of the biggest reasons why Vader turned to the dark side in the first place.
One of the main reasons why Yoda would've won against Anakin is simply because he was far better trained than him. Yoda could see the moves his opponents were going to make before they made them; therefore, battling against Anakin would've put him at a far heavier advantage.
Though he saw Anakin's potential, Yoda could not ignore the danger inherent in Anakin's unrestrained emotional attachments. To teach Anakin responsibility, Yoda assigned Skywalker a Padawan learner: Ahsoka Tano. Yoda knew there would come a time when Anakin had to let go of Ahsoka.