Maybe preTS, where he killed innocent people
but now he's just Luffy 2.0
He only won because he became "friends" with Luffy, Law and allied together. AKA Luffy
Oda only shows his obsession with Kid and Killer ass sniffing each other
We still have no idea why he doesn't ass sniff Heat and Wife even though from SBS they grew up exactly the same with Kid and Killer. What's special about Killer that Kid sniff's his ass?
There's a difference between unbreakable will and just straight up being stupid.
He and Killer rushed to Kaido with knowing no way to damaging him and knowing that they have no chance of winning:
That's just stupid. Rushing to death =/= will
The will only counts if there is no other way of running away, changing plans, negotiating, training...etc.