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
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