system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] How come Anakin/Vader lost in his duel against Obi Wan Kenobi on Mustafar?

Anakin had a connection with the Force supposedly on a level above anybody else, allegedly fathered by the Force itself. He had fallen to the dark side, fueled by fiery rage, and the duel took place surrounded by lava, hardly the place for Jedi-like dispassionate self-control. The fight was emotional for both participants, breaking a bond of brotherhood and mentorship that Kenobi should never have fostered the way he did. Anakin had every advantage, how come Kenobi was the stronger fighter?
gpt
Kenobi had the high ground!

But seriously, Kenobi shouldn't be underestimated as a Jedi or as a warrior. Are there stronger Force users? Of course. Yoda, Windu, and Palpatine are all more powerful, but Kenobi is still up very high on the "all time greats" list.

Furthermore, Anakin was only starting to realize his Dark Side powers. He had been a Sith for a few *hours* when he battled Kenobi, whereas Kenobi had been a Jedi Master for *years*. So you have a guy at the top of his power fighting someone who *would become* the strongest Force user in the galaxy, but had not yet reached that level.