But Zoro always fights the first mate!!
Except against Bucchi and Siam, Mihawk, Hachi, Mr5, Mr1, Bhram, Ohm, Kaku, Ryuma, Hyozou, Monet and Pica.
Only Cabaji and Tashigi then eh?
This is why the way I see it, and I think we all should, is that Zoro always fights the most dangerous one(besides the big boss of course)
Daz Bones being Mr 1, I think Vivi or Igaram somewhere said that the lower the number the more dangerous or stronger the enemy.
Ohm having the lower possibilities of survival compared with the other priests.
Kaku being the second one with the highest dourikis between the CP0´s
And on the actual arc, cards are often valued differently in most games, being spades(Pica) the card with the highest value(even higher than the aces in some cases), and this is interesting because Spades also usually shares its value with Hearts, while Diamonds and Clubs are often the ones with the lower value.
Zoro defeating always the first mate is indeed a wrong statement. Kaku and Lucci shared the same position actually.