Yoda is the wisest force user within the principles of the Jedi, but Qui gon would be the wisest force user who is a Jedi.
Yoda - Wikipedia
Master Yoda, the wisest and perhaps most powerful Jedi of them all, remains species indeterminate and looks like something the cat might drag in, but his lustre as the lovable font of all Jedi wisdom is undimmable. He's lived 900 years.
Genius-Level Intellect/Master Tactician/Leader: Luke was amazingly intelligent and wise; his intellect and wisdom rivaled that of even Yoda, Sheev Palpatine, Qui-Gon Jinn, and Anakin Skywalker. As a Jedi Commander and the leader of the New Jedi Order, Luke was a highly skilled tactician and a very capable leader.
Tony Stark IQ is believed to be 270, indicating that he is a super genius. Only 0.1 percent of the population has a score close to that.
Master Tactician: Even before his fall to the dark side, Vader was amazingly intelligent and wise. Darth Vader was a brilliant strategist and was still, despite his lessened Force potential, one of the greatest pilots in the galaxy.
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.
During the High Republic, the 12 seats on the Council consist of three Grand Masters, including Yoda, Lahru, and Pra-tre Veter.
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.
The legendary Obi-Wan Kenobi is considered one of the strongest Jedi ever to carry a lightsaber. He took down Darth Maul twice, defeated the infamous General Grievous in one-on-one combat, and bested his former apprentice Anakin Skywalker in the fateful duel on Mustafar.
There just isn't any way that in an even fight Obi-Wan beats Vader. Although Vader is supposed to be one of the strongest force users of all time, we actually haven't had a chance to see him using his full strength very often.
1/15 Luke Skywalker
Having faced his father once before, Luke was familiar with his tactics and used the force to gain an upper-hand. In Star Wars Canon, only Luke Skywalker can be acknowledged as the one who truly defeated Darth Vader.
The Kel Dor Zym, who was the Grand Master throughout the Great Galactic War, was assassinated shortly after the fall of the Jedi Temple in 3653 BBY. Sometime later, Satele Shan was elected as Grand Master, becoming the youngest known individual to ever receive the title.
Padmé Amidala Biography Gallery. Padmé Naberrie was born to humble parents, and was identified early as one of Naboo's best and brightest. She devoted herself to civic duty, and was elected Queen of Naboo at age 14.
Mission to Mathas. Padawan Windu was trained in the ways of the Force by Jedi Master Cyslin Myr.
Known survivors. It was said that fewer than one hundred Jedi—approximately one percent of the entire Order—survived Order 66.
Many Jedi Masters also took on apprentices to train in the ways of the Force, such as Depa Billaba and Luminara Unduli. After serving as a Jedi Knight for three years, Anakin Skywalker advanced to the point in his training that he felt he deserved the rank of Jedi Master, though the Council did not agree.
This information comes to light form the comic series Darth Vader: Dark Lord of the Sith by Charles Soule and Giuseppe Camuncoli, in particular issue #7. Palpatine admits to Darth Vader that the Jedi he actually feared most was none other than Jocasta Nu.
His armor could be hacked and controlled by a device. In a turn of events, Darth Vader's right limb holding his dangerous scarlet lightsaber was moving of its own accord toward his neck. This was a dangerous weakness indeed.