In One Piece's latest chapter, Luffy, Chopper, and Jinbe get separated from the rest of the Straw Hats, together with the Supernova Jewelry Bonney. It is revealed that they ended up on Egghead Island. The rest of the Straw Hats then end up meeting a person who claims to be Dr. Vegapunk, which is contrary to the past descriptions of the person being an old man, bringing Chapter 1061 to a confusing and exciting conclusion.
As the Straw Hats become more experienced and face many battles and events on their journey to Laugh Tale, their bounties would naturally increase, as the threat that they pose to the World Government increases. This is fueled by the fact that Luffy is now an Emperor, making him more dangerous in their eyes. However, as each Straw Hats' strength and threat levels are different, it is natural that they would have drastically different bounties, as well.
Tony Tony Chopper: 1,000 Berries
Chopper is the ship's doctor and the fifth member to the crew. Despite being a reindeer, Chopper is smarter than most humans, which is largely due to eating the Zoan-type Human-Human Fruit. While Zoans normally have three forms, Chopper has developed his own to have seven.
Chopper is on the weaker side of the Straw Hats, calling himself part of the "Weakling Trio" alongside Usopp and Nami. What makes Chopper have such a drastically low bounty as compared to others is that the government thought of Chopper as a mere pet of the Straw Hats, which became a running gag in the series.
Nami: 366,000,000 Berries
Nami is the Straw Hat's navigator, a talented cartographer, and the third to . Although she is also one of the weaker Straw Hats, she is no pushover. She can manipulate the weather of her surroundings with her Clima Tact, which has now become stronger due to Zeus following her.
As someone who is called a "Cat Burglar," what makes Nami earn this bounty is that she is an excellent thief and financial handler, managing to launder money from people and get information from them after some intimidation and trickery, which she is frequently successful at.
Brook: 383,000,000 Berries
The crew's musician and oldest Straw Hat, and eighth to , is Brook. Although he's not one of the strongest, he is still pretty strong.
He has an aptitude for singing, playing music, and using swords, which he may creatively apply to his devil fruit powers.
He can use his musical powers to hypnotize his opponents and was able to beat hundreds of Fishmen by doing so. He is also capable of freezing his surroundings and can inundate beings with weaker souls, such as Big Mom's homies.
Franky: 394,000,000 Berries
One of the designers of the Thousand Sunny and a competent shipwright for the Straw Hats is Franky. His greatest accomplishments stem from his intelligence since Franky built a ship that is significantly more robust and adaptable than the Going Merry, and he even introduced new technologies that the Going Merry did not have.
During the events of the time skip, he was able to copy a lot of Dr.Vegapunk's inventions, which made his body a lot stronger than it was. He was also able to defeat Sasaki, one of the strongest of the Beast Pirates, showing that he has both brawn and brains, which earned him this bounty.
Usopp: 500,000,000 Berries
Usopp is the sniper of the Straw Hats, and alongside Nami and Chopper, a part of the "Weakling Trio." He was also the one who created Nami's Clima-Tact. While Usopp is often seen as cowardly and one of the weakest Straw Hats, he has been able to defeat stronger opponents with his intelligence and trickery.
Usopp also possesses a range of abilities. He has the ability to utilize psychological warfare on his opponents and was able to hit someone precisely with a slingshot from a distance. He can also identify a person's strengths and use them against them. He is almost always successful when using tricks against his opponents, which makes him a dangerous foe.
Nico Robin: 930,000,000 Berries
One of the smartest Straw Hats, Nico Robin is the archeologist of the crew. She is the former vice-president of the criminal organization led by the ex-Warlord Crocodile, Baroque Works. After her hometown, Ohara, was destroyed, she gained a bounty of 79,000,000 Berries, despite being only eight years old.
Although Robin's bounty is largely due to being the only known person that can read Poneglyphs, that isn't to say that she is weak. She was able to beat Black Maria, one of the strongest of the Beast Pirates by herself, a testament to her strength.
Vinsmoke Sanji: 1,111,000,000 Berries
Born Vinsmoke Sanji, he is the cook of the Straw Hats. Alongside Zoro and Luffy, he is part of the crew's "Monster Trio" due to his strength. Sanji's bounty is somewhat influenced by being the son of Vinsmoke Judge, the king of Germa.
As one of the crew's strongest fighters, Sanji has defeated some of the strongest villains to exist. This includes Queen, one of the Beast Pirates All-Stars, who are the three strongest of the crew other than Kaido. This is despite Queen having copied some of Germa's technologies, including Sanji's invisibility.
Jinbe: 1,100,000,000 Berries
Jinbe is the crew's helmsman and the latest member to . He is one of the smartest Straw Hats, proved by his great knowledge of the seas, where he let the Thousand Sunny dodge Big Mom's array of attacks. As an ex-Warlord and participant in the Paramount War, Jinbe has one of the crew's highest bounties ever.
Jinbe has also escaped Level 6 of Impel Down and released some of its most notorious criminals, such as Crocodile, which increased his bounty even more. He is also very strong, as he was able to throw Big Mom over his shoulders, and also defeat Who's Who, one of the Beast Pirates' strongest and an ex-9 agent.
Roronoa Zoro: 1,111,000,000 Berries
An ex-pirate hunter, Zoro is the combatant and one of the swordsmen of the Straw Hats and is the first one to the crew. He is also one of the two people in the crew that can use Conqueror's Haki, the other being Luffy.
Zoro is arguably the 2nd-strongest member of the crew, which contributed to his large bounty. He has defeated some of the most powerful villains in each arc. The most recent is the Beast Pirates' King, who is also an All-Star. He managed to do this despite being heavily injured and the fact that King is a Lunarian, a member of a powerful extinct race, which is a whole new experience for him, showcasing Zoro's bravery and wit.
Monkey D. Luffy: 3,000,000,000 Berries
Luffy is the Straw Hat's captain and is now one of the Four Emperors. Together with Zoro, he is a member of the Supernovas. Luffy's large bounty is caused by a myriad of reasons, such as having the Will of D, declaring war against the government, and most recently, defeating Kaido and replacing him as an Emperor.
Luffy also uses one of the strongest Devil Fruits, the Mythical Zoan Human-Human Fruit, Model: Nika, which is largely coveted by the government. One of the Five Elders even called it as the most ridiculous Devil Fruit ever. He was able to defeat Kaido after awakening this ability, which proved how strong Luffy is.