Anyone who thinks EOS Koby will surpass Vergo needs to be drug tested. Yes Koby has an attack or two that is an outlier, yes King Elizabello's punch had insane AP, but Vergo would still fold him any day of the week. We saw Pica's underling folding Chinjao, let alone Pica himself.
Only Prime Koby will be at a level where he can seriously contend with an unreserved Admiral. Koby won't have enough time to get there unless there is a timeskip before EOS.