Hi Erns. s164 is nice and these fish do 'seem' to have the Dainichi white ground. 164 will have some interesting future development if it does finish of course. The beni is also very Dainichi like.
The other is more of a 'now fish' and more male looking than 164. I'd call it a show fish for now or over the next year. But with less of a future than the other , assuming your other choice finishes- that is the heart break of showa! Having all colors come together at once and having the teaser sumi finish at all.
The one I posted that I called 26 ( twenty sixth fish down on the list) has the body of Dainichi showa. They can stay 'thick and short' but if they stretch ( never jumbo, but big) they have a very imposing appearance with that head and those shoulders- very powerful looking adults. The sumi looks rich and will be fun to follow thru the finishing process. That little bit of white and strong polished beni will likely carry all that black well. I know some one who bought a similar look from Dainichi but higher quality and size/age for $35,000! So who knows??! And her sumi never really fully finished. Koi buying is like gambling.
JR