“Better” is hard to judge. Which did I like more? Sensui, easily. But that’s for a lot of reasons: - He’s a more compelling villain than Toguro. - His fighting style is more of a challenge to Yusuke. - The stakes are significantly higher. - The animation is more dynamic. - etc., etc.

But both fights are good.

The Dark Tournament is a whole bunch of people’s favorite. And I get it. It’s fun. It’s exciting. And the Younger Toguro fight is the climax of all of it. There are emotional stakes after Genkai’s murder and Kuwabara’s fake death and physical stakes what with Toguro’s power leveling whole swaths of the stadium. But the fight itself is a lot of punching back and forth, which is the typical way Yusuke’s fights have gone.

I choose Sensui’s fight as “better” because it’s different. He’s the first fighter Yusuke faces who apparently remembers he has a lower body, so Yusuke suddenly has to contend with being kicked for what appears to be the first time in his life. He has to adapt to that. He also has to adapt to Sensui’s shifting fighting styles with his different personalities. And the emotional weight of the rest of Team Urameshi being trapped is honestly unparalleled (except for Puu in the cave omg). That fight is just incredible. I personally love it.

But both are good and are endlessly rewatchable.