Logia. The rarest and most powerful of the three Devil Fruit types, Logia-type Devil Fruits allow their users to create, control, and transform their body into a natural element, such as sand, mud, smoke, lightning, plantlife, and even darkness.
The Uo Uo no Mi, Model: Seiryu is quite easily the strongest Zoan Devil Fruit in the story so far. It was eaten by none other than Kaido, one of the Four Emperors, following the major battle on God Valley, 38 years ago. This Devil Fruit grants him the ability to turn into an eastern dragon and its hybrid at will.
For instance, Logia allows the user to control an element like fire and Zoan allows the user to transform into an animal. Logia are considered to be the rarest, while Paramecia are the most common.
Mythical Zoan devil fruits are extremely rare, as they are even rarer than Logia-type devil fruits, which are among the most powerful out there.
All these Zoan powers were awakened, as explained by Sir Crocodile, one of the Shichibukai. Although their awakening wasn't shown in detail, they were said to have an extremely high recovery rate, along with much higher strength and speed in combat.
The Gomu Gomu no Mi which is also referred to as “Hito Hito Model: Nika” It is a Mythical Zoan-type Devil Fruit that enables the user's body to stretch, making the user a rubber Human (ゴム人間 Gomu Ningen).
The Mizu Mizu no Mi is a Logia-type Devil Fruit that allows the user to become, create, and control water. This turns the user into a Stupid Person (Baka Ningen). "Mizu" is the japanese word for "water".
Zoan is one of the three Devil Fruit types. This type of Devil Fruit allows a user to transform into an animal species at will, or an inter-species hybrid. Unlike Paramecia and Logia Devil Fruits, Zoans are said to carry wills of their own even when unconsumed, though it's not commonly known.
It seems to be a state one reaches where the user becomes in touch with the animal and can become stronger and recover faster, essentially mastering their powers, similar to a Logia user being able to use their powers reflexively.
To everyone's surprise, Luffy, who was always believed to be a user of the Paramecia type Gomu Gomu no Mi, is actually a user of a Zoan type Devil Fruit. Furthermore, this isn't just any Devil Fruit, but a power described to be "the most ridiculous" to exist in the entire story.
Known as the Ultimate Devil Fruit, the Ope Ope no Mi was fed to Trafalgar Law by Donquixote Rosinante. Its powers have made him a modification man, and allow him to create ROOMs within which he can control everything.
The Tatsu Tatsu no Mi is a Zoan Devil Fruit that allows the user to transform into a dragon or a dragon-human hybrid.
Yamato ate a Mythical Zoan Class Devil Fruit known as the Inu Inu no Mi, Model: Okuchi no Makami, which allows her to willingly transform into a hybrid or full form of the wolf deity described as being the Guardian Deity of Wano.
2) Sengoku (Hito Hito no Mi, Model: Daibutsu)
Sengoku is among the strongest Marines. Even the former Pirate King respected his abilities. Sengoku can transform into a gigantic Buddha with a golden body. His physical stats are even more impressive in this form.
Topping this list is the Yami Yami no Mi, a Devil Fruit with the ability to nullify every other Logia (or any other Devil Fruit) user with black holes. Fittingly wielded by Blackbeard, a pirate hellbent on domination, the Fruit's elemental abilities rely on consuming others in it and rendering them powerless.
In the manga and anime series One Piece, devil fruits grant those who eat them incredible powers, in exchange for giving up their ability to swim. These fruits are divided into three main types — Paramecia, Logia, and Zoan. Zoan-type devil fruits allow their users to transform into an animal.
One of the most theorized powers that Monkey D. Dragon is thought to possess is the power of the Wind Wind Fruit or an ability that is related to wind. While Oda hasn't revealed what powers Dragon wields, fans do know that he produced strong gusts of wind at Loguetown to help Luffy escape Smoker.
Yamato ate the Inu Inu no Mi, Model: Okuchi no Makami, a Mythical Zoan-type Devil Fruit that allows him to transform into a divine wolf, as well as a human-divine wolf hybrid. According to Kaidou, this beast is a "Guardian Deity of Wano Country".
The Kūki kūki no Mi, also called the Air Air Fruit, is Paramecia type Devil Fruit that allows the user to manipulate air in his imediat vicinty. It was eaten by Mugen J Jigoku.
Kaze Kaze no Mi (風風の実) is a Logia-Type Devil Fruit that turns the user's body into wind and allows the user to control and generate wind or high pressure currents with their body.
Unique amongst the Paramecia class, this fruit's ability to transform the user into mochi is analogous to the properties of a Logia class. Thus, the user is intangible against attacks that are not imbued with Busoshoku Haki, and they can freely morph their transformed body into any shape.
We know for a fact Shanks had it and it was stolen from the world Government.
Current User:
The fruit was a treasure sought by the World Government for over 800 years, until it was stolen by Shanks and his crew in recent history. It was then accidentally eaten twelve years ago by the series' protagonist, Monkey D. Luffy.
The Hito Hito no Mi is a Zoan-type Devil Fruit that allows its user to transform into a human hybrid or a human at will. It was eaten by the reindeer Tony Tony Chopper, turning him into a Human Reindeer (人間トナカイ, Ningen Tonakai?).