When shanks mentioned non yami BB giving him scar his words indicated that despite him being not careless BB gave him that scar.
He was trying to portray how big of a threat BB can be.
Now even if I assume that shanks was still not yonkou at that time then the way he emphasized this implies that it was big deal especially when we are talking about non df BB here.
As far as fights is concerned then you are right. A full fight vs just an attack is bad comparison but luthon asked me to name the best feats and akainu has it
He was trying to portray how big of a threat BB can be.
Now even if I assume that shanks was still not yonkou at that time then the way he emphasized this implies that it was big deal especially when we are talking about non df BB here.
As far as fights is concerned then you are right. A full fight vs just an attack is bad comparison but luthon asked me to name the best feats and akainu has it
but that doesnt speak about his age
i dont see why oda has his eye covered in rogers execution and when he met yassop and to a lesser extent his flag also having a scar i doubt its coincidence
in the context that akainu is the only one in the series with a confirmed solo win over another top tier i agree thats one of the best feats
but again the fight itself was a 10 day extreme diff fight
as for zoro whilst it may not be the best feat
the 2nd most durable character having no faith in THE most durable character taking that attack and calling for him to dodge for the first time ever is a pretty incredible feat.