Best fight in Onigashima.

[B Rabbit]

The Fights:

Luffy vs. Page One and Ulti
Luffy vs. Yamato
Scabbard vs. Kaidou
Rooftop 5 vs. 2 Yonkou
Marco vs. King and Queen
Luffy vs. Kaidou
Jimbei vs. Who's Who
Franky vs. Sasaki
Robin vs. Black Maria
Yamato vs. Kaidou
Sanji vs. Queen
Zoro vs. King
Law and Kidd vs. Big Meme
Killer vs. Hawkins
Gear 5 Luffy vs. Kaidou

 

[B Rabbit]

For me:

Big Mom vs. Law and Kidd
Zoro vs. King
Luffy vs. Kaidou
Jimbei vs. Who's Who
Rooftop 5 vs. 2 Yonkou


Least favorites
Sanji vs. Queen
Killer vs. Hawkins
Scabbards vs Kaidou.

 

[Aurelian]

Zoro vs King

 

[OtherGalaxy]

the general rooftop fight and Luffy vs Kaido/Drunk Kaido, followed by Zoro vs King

G5 Luffy vs Kaido was unfortunately lackluster in the ending to me

do wanna give some credit to Frank vs Sasaki though, its one of the only OP fights where the winner doesn't just overpower the other guy. He had to abandon his armor and use a last ditch attack to win, which was very cool and a nice change of pace