What actual relevance does that have? Sanji didn't lead anything. He wasn't the leader of anything. All he did was ask if he could attack, that doesn't mean he was in an elevated position above Nami. Nami has on more than one occasion commanded everybody including Luffy, but she's not over Luffy. Luffy, Zoro, and Nami are the three heads of that crew, as Oda had stated himself. Nami is higher on that ladder, as obsure a ladder as it is.
Oda's statement holds some weight, but not so much when you're repeating it over and over while FoolishY lists up receipts.
Don't get me wrong, I want Nami to be the third in charge, (because 1. She was the third to be reqruited, 2. You shouldn't need to be monster trio to be the boss, and 3. She's the only girl.) but she isn't..
So when has Nami commanded the crew? Because you seem to remember but I don't. Their encounter with BM's fleet is more relevant than you think because Nami panicked and that's the opposite of what you should do when you're the boss. It might have been a small moment but it showed us straightforward who Luffy should leave in charge when he and Zoro are gone.
(She also panicked when they met a beast pirate on Zou, and Sanji had to save her. I get she's not a strong fighter but she has a weapon and she should use it more often, or at least wear it, and not rely on others. Saying this because I just saw the episode)
Edited by sushi., 12 May 2017 - 10:31 PM.