Originally Posted by
Blackriot69
First of all, we are comparing their hakis because 1) Outside of Luffy, we have seen little haki variances throughout the OP world, including the Marineford arc and Rayleigh's explanation; and 2) It is no less a topic of importance than any other topic for discussion we have after this chapter (including your dragon questions).
My reason for discussing the "presumable" difference in Zoro and Sanji's hakis goes back to what Rayleigh said himself about haki. While every living creature inherently has a presence of haki, few awaken to weild it. Likewise, each person has one of the three (more commonly two) types of haki that they are inherently better at, though with time they may heighten each haki type they possess. Basically what I am saying is that Sanji has a greater awakening to CoO. This should only be made stronger by the fact you are claiming he has been using it the entire chapter to watch Tashigi (which I still find comical as we see Sanji clearly in ONE panel prior to him rushing to G-5's aid, and even then he is as nonchalant looking as the rest of the crew on Brownbeard's back). Nevertheless, if Sanji were using CoO the entire chapter, wouldn't that mean he sensed Vergo far before Zoro had? Even Usopp mentioned what the deal was with Sanji dashing off all the sudden, and Zoro simply stated an unfamiliar presence, but paid no critical mind to it. Hypothetically then, if Sanji does have a stronger tendency towards CoO, he would presumably have a wider sense and even a more sensitive sense as to the danger Vergo presented. Therefore, while Zoro may have noticed Vergo upon arriving behind them, Sanji could have sensed not only his arrival, but also his pre-arrival and threat level, also validating why Zoro was so casual about Sanji leaving alone as he wasn't able to detect the latter aspects. Even if the gap between haki abilities is slight, it is a valid argument to hypothesize about which type each Zoro and Sanji lean towards.
That argument aside, yes, I am talking about Sanji. While I concede I may have overstepped and irrationally weighed how spot-on those three adjectives describe Sanji, I did not say he was the MOST out of the crew, merely ONE of the main members. Though Robin and, yes, even Zoro, tend to live more seriously and therefore levelheaded, Sanji too holds some of the most elaborate and tactical accomplishments to be performed by the crew. Simply remember Mr. Prince and Alabasta, deciphering that Robin would wind up at the train station in Water 7, and the Gates of Justice at Enies Lobby. While he is not necessarily widely acknowledged for his genius, more often than not this character trait being overshadowed by his fiery temper, Sanji continually must have a level-head, attention to detail, and keen observation to perfom such endeavors.
See explanation above, though I agree they are probably about the same overall in haki ability between the two types.