Nico Robin is decisively the most mature member of the Straw Hat pirates. She estimates her strength well, does not take unnecessary risks, and avoids participating in the crew's more outlandish activities (though is sometimes amused by them).
Well, Chopper is actually the youngest Straw Hat, and he is periodically treated as such. It is not unusual for Chopper to be babied by characters such as Robin and Zoro. His birthday is December 24th, Christmas Eve, which reflects the cold climate he comes from and the fact that he was originally a reindeer.
1 Monkey D. Luffy, The Captain
Luffy is the by far the strongest member of the Straw Hat Pirates.
That said, there is one crew member who stands above the rest in terms of loyalty to Luffy: Roronoa Zoro. The Straw Pirates' first mate has proven his loyalty on numerous occasions throughout the series, even putting his crew mates' well-being above his own life.
Zoro trusts Luffy implicitly and always follows his decisions whatever the consequences, acknowledging it as a captain's decision, which a crew must carry out without question. When Zoro first joined Luffy, he made it clear that he would turn on or even kill his captain if he ever stepped between him and his dream.
Usopp has a bounty of 500 million berries, however, his skill isn't up to the mark just yet. Out of all the Officers of the Straw Hat Pirates, he is the weakest.
As the Straw Hats' musician, it's little surprise that Brook is technically the least valuable member of the crew. He rarely contributes anything that would lead to the group's success and even needed to be saved by Zoro at Thriller Bark.
Yamata is going to become the 11th member of the Straw Hat Pirates soon. We thought she will become one by the end of the Wano arc, but unfortunately, she stayed to help Momonosuke and the others raise Wano back to glory again. But Yamato is confirmed to be the unofficial 11th member of the Straw Hat Pirates.
How old is Brook? Brook is by far the oldest member of the Straw Hat Pirates in One Piece. Technically speaking, this musician died when he was 38.
1) Nico Robin
Nico Robin, however, is undoubtedly the smartest among the Straw Hat pirates. She's the only survivor of the island of Ohara, a people renowned for their general intelligence and academic capabilities. She's also one of, if not the only person alive in the One Piece world who can read the Poneglyphs.
Zoro x Hiyori
They shared intimate moments and Zoro might even find a sense of belongingness when he's with her. Throughout his tedious journey, Zoro met a lot of potential partners but the connection he seems to have with Hiyori seems special as Wanokuni has immense influence over Zoro's life.
Roronoa Arashi is confirmed to be the father of our beloved swordsman, Roronoa Zoro. Is Zoro's family revealed? Yes! Roronoa Zoro's family was revealed in an SBS with Eiichiro Oda specifically in the One Piece Volume 105: Zoro's Family Tree.
So, aside from the intro, Luffy is 17 years old for the majority of One Piece. However, he does age during One Piece's time-skip. Both the manga and the show introduced a two-year time-skip to the One Piece storyline.
Jinbe. While this might change after One Piece Chapter 1057, Jinbe is currently the final recruit for the Straw Hats Pirates. The Fish-man serves as the skilled helmsman of the Thousand Sunny.
Teach, known as Blackbeard, is perhaps the most theorized possibility for Luffy's final opponent. Blackbeard's murder of fellow crewmate Thatch during his time as a member of the Whitebeard Pirates directly led to the events that resulted in the death of Luffy's brother, Ace.
Luffy needs key jobs filled by his crew (cook, navigator, medic, musician, and shipwright, filled by Sanji, Nami, Chopper, Brook, and Franky, respectively). At the beginning of the series, he said that he wanted at least ten crew members with abilities he felt necessary for his goal.
Monkey D. Luffy is the strongest Straw Hat Pirate member. From taking down Doflamingo to going toe-to-toe with Kaido, his exploits and achievements in the New World have been incredibly exciting.
6. Brook-With his speed and new abilities, I think he is a little stronger than Robin. 7. Robin-She has developed her devil fruit well and she is good at ranged fights but has no haki and is weak at short ranged so I think Brook and even more Franky are stronger than her.
Who is Nami's crush One Piece? Nami cares about Luffy deeply and will often hug or hold onto him when she is scared or depressed. Their relationship is consistently presented as positive and affirming, an example of two people with compatible dreams and different temperaments working out conflicts as equals.
Jong-hak Baek: Nami's Husband.