Admiral Akainu's devil fruit Magu Magu no Mi is the ultimate weapon for absolute destruction. It is the most powerful raw power (even better than fire) in the One Piece world. This devil fruit allows the user to create and control magma at their will, along with turning themselves into magma.
The Kami Kami no Mi (God God Fruit) is a special, classified, and no-class devil fruit. This fruit is known as a source of strength from all of the devil fruit in the world. That said, this fruit has long been lost. It's existence was questioned and only exists in ancient texts.
Luffy's Gum Gum Fruit is one of the strongest in the world of One Piece, but there are still some varieties that are stronger. Gum Gum Fruit, also called the Gomu Gomu no Mi, is one of the most featured Devil Fruit in the world of One Piece. It was eaten by the Captain of the Straw Hat Pirates, Monkey D.
Logia are considered to be the rarest, while Paramecia are the most common. Zoan are somewhere in between in terms of rarity. Certain Zoan are extremely rare because of their mythical or prehistoric natures, and a number of Paramecia are rare because of their abilities and because of how frequently they appear.
The Ope Ope no Mi is the most versatile devil fruit in the One Piece world. This Paramecia-type devil fruit allows the user to create a dome space called “Room,” and the user can freely manipulate any person or thing inside this room like a surgeon. This devil fruit can also cure untreatable diseases.
However, much like many of his crewmates and allies, Luffy was once weak. His Devil Fruit made him even weaker as it was incredibly difficult for him to control his powers as a kid. Thanks to the relentless effort that he put in, he was able to grow up into a terrific pirate.
The Inu Inu no Mi, Model: Okuchi no Makami is a powerful Mythical Zoan type of Devil Fruit that was introduced to the fans towards the end of the Wano Country arc. This legendary devil fruit is precious and was in possession of Kaido of the Four Emperors for quite a long time.
One Piece shows a new awakening of a Zoan-type Devil Fruit, confirming that Luffy's version of this rare and powerful ability is absolutely unique.
As mentioned above, there are four gods in One Piece namely the Sun God, Rain God, Forest God, and Earth God. Although it was revealed that Luffy's Devil Fruit gave him the powers of the Sun God Nika, the identities of other characters with godlike powers are still a mystery.
Unlike most other Devil Fruits, the effects of the Gomu Gomu no Mi are always active, making the user's body permanently rubbery. The user becomes almost completely immune to blunt damage, including hand-to-hand combat, blunt weapons, bullets, and even cannonballs, all of which will just bounce off from his skin.
The Kami Kami no Mi, Model: Zeus, is a Mythical Zoan-type Devil Fruit that allows its user to turn into Zeus, God of the Sky and ruler of the Olympian Gods at will.
The Soku Soku no Mi is a Paramecia-Type Devil Fruit that enables the user the ability to move at extreme speeds, thus making the user a Fast Human (速い人間 Hayai Ningen).
In a Water 7 filler episode, Sanji finds another hint of the All Blue's existence. Salt is brought by the Aqua Laguna from all the seas and Sanji compares it to the All Blue. It is shown to be such a good seasoning that a small amount in food is enough to outclass even his own cooking.
Hito Hito no Mi, or human human fruit, is a zoan type devil fruit. This fruit's effects on humans are unnoticeable because the effect itself is turning the user into a human. If Sanji ate this fruit, the only ability he would gain is a swimming disability.
In the 98th volume of One Piece, Oda answered a fan question about what Devil Fruits would fit Nami, Zoro, Sanji, Usopp, and Franky best. Nami's Fruit is the Rumble Rumble Fruit, which lets its user wield the power of lightning.
Possessing two Devil Fruits is normally impossible, and the exact mechanism for how Blackbeard achieved this feat is unknown. Typically, the Devil's spirit inhabiting the body of a Devil Fruit user will not allow another one in, killing the user.
It is widely known that each Devil Fruit is unique and, as long as its user is alive, there cannot exist another with the same ability in the world.
While the rest of the Vinsmoke siblings were born without any emotions and great scientific power, Sanji kept his emotions and lacked all the genetic augmentations. Consequently, Sanji was considered weak and abused by his father as well as his brothers but thanks to his sister, Reiju, he was able to make an escape.
Against Shanks, even if Luffy possesses weaker Haki, the Devil Fruit abilities of the Hito Hito no Mi, Model: Nika can make up for the deficit and see him emerge victorious. Currently, however, Shanks is likely stronger than Luffy, simply due to the fact that the plot demands that of him.