* Kyoshiro > Shutenmaru ~ Jack (he was superior to Base Jack).
* A brutally injured Nitoryu Zoro could (by his underlings' admission) keep up with Kyoshiro (IMO Kyoshiro beats healthy Nitoryu Zoro at high diff).
* Santoryu Zoro mid diffs Nitoryu Zoro.
I might write an essay on this later.