mmmmmm,
not an easy one for me , as , only one of the fish is my flavour , so putting aside my taste , i'd go for 1 & 2 , head shape is more elongated , and dorsal is set futher back on both , also no 3's dorsal looks like it ends very close to the tail , though this could be picture angle ???
no3 seems a touch wide at the shoulders , along with the dorsal fin issue , it could end up like a frying pan , though gut feeling says the frying pan statement , could be a bit overzealous , so a chubby fish

saving grace for me on this fish is the pattern , 25-30% sumi , is just my flavour shiro or showa , so in no way a dud , and if i was buying one , it would be no3 !
the rest of their development would be down to bloodline and the genetics and external pond and rearing issues
steve