This isn't to say that Mace Windu isn't powerful when it comes to the force. He's on par with Darth Maul and is more powerful than Qui-Gon Jinn. But, Obi-Wan is still the stronger Force user which makes him a powerful combatant.
While Mace rivals him in saber skills, Yoda was the Republic's strongest warrior. His legendary Force abilities, unparalleled wisdom, and arguably-supreme bladework grant the advantage over Windu, and we likely never even saw Yoda at his prime.
In terms of power in the Force, no. Mace Windu was the premiere Jedi Master on the Council during the Clone Wars, considered second only to Yoda in terms of authority and raw power.
Between Darth Vader and Obi-Wan, it's pretty clear that Vader is far more powerful with the force. After all, he pretty easily used the force to stop a starship from taking off in the previous episode, and manhandled Kenobi throughout the majority of the show.
Jedi Master. Prodigiously talented in the Force, Windu passed the trials early, and continued to progress through the ranks of the order by achieving the title of Jedi Master and, at the remarkably young age of twenty-eight, was appointed to the Jedi Council.
In Revenge of the Sith, set three years later, Obi-Wan is now a Jedi Master and a member of the Jedi Council, as well as a General in the Grand Army of the Republic.
In Star Wars Legends and Canon, Galen Marek (Starkiller) is the only Jedi (other than Obi-Wan Kenobi) to put a beat down on Darth Vader/Anakin Skywalker.
Darth Vader. Mace Windu can obviously put up a somewhat decent struggle, but he can't win, nor is he Vader's equal. Basically, Mace Windu might have two advantages against Vader, his Vaapad and his shatterpoints awareness, not only against Vader, but against most darksiders in general.
Biography. Legend had it that Yoda—a Jedi who became Grand Master—was trained by N'Kata Del Gormo.
Mission to Mathas. Padawan Windu was trained in the ways of the Force by Jedi Master Cyslin Myr. Following his early trials as a youngling, Windu attained the status of Padawan by becoming Jedi Master Cyslin Myr's apprentice.
If the two spared as Jedi, Dooku would probably win the match because he was the better all-around duelist. But if this issue's fight had continued with Windu as a Sith, Windu would have been able to turn the tables.
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.
Arguably, Qui-Gon is wiser in some ways, given that he knows how to preserve his consciousness in death. Yoda is wise, but sometimes flawed, given that some of his views align with the problematic thinking of the Jedi of this era.
Yoda would easily prevail in a fight involving only the Force and a lightsaber. Because of his prosperity for manipulating the Force and his skill with the light saber, Yoda is too powerful. Mace will fight against him, but Yoda will win because of his extensive knowledge of the Force.
Yes, Mace Windu really defeated Palpatine. You can clearly see it in the movie and George Lucas confirmid that his victory was legit.
Aside from agility and telekinesis, Yoda could absorb and redirect Force attacks, like lightning. Because of his higher understanding, he would easily overcome Darth Vader in a fight, though that doesn't mean it wouldn't be a difficult battle.
Windu would win. The reasoning is pretty simple, Windu was able to fight evenly and eventually overpower Sidious, while Maul got handled pretty easily while fighting alongside his brother.
Darth Vader defeats Darth Maul. The two Sith Lords engaged in a lightsaber duel, going through the volcano and onto a bridge situated over a river of lava, which collapsed, though they both survived and continued their battle.
1 Darth Sidious
There has been no Sith, as powerful, meticulous, nor as evil as the Emperor himself, Darth Sidious. As previously mentioned, Sidious trained in the Dark Side by Darth Plagueis before Sidious killed Plagueis in his sleep, making Sidious a Sith Master.
Luke Skywalker
However, once Luke fully embraced his power in Star Wars: Return of the Jedi, he proved that he was indeed stronger than Darth Vader and struck his father down.
He does. Right at the end. With Luke crying over him and Vader sensing his anguish and pain he had inflicted on all those who had cared for him.
In the original Star Wars: Episode VI – Return of the Jedi screenplay, Obi-Wan did have a brother, and it was none other than Owen Lars (Joel Edgerton)—Luke Skywalker's step-uncle and Anakin's step-brother.
During the early days of the Clone Wars, Skywalker served as a Jedi General in the Grand Army of the Republic, commanding the clone troopers of the elite 501st Legion against the Confederacy of Independent Systems.