I think Madara Uchiha could be one of the most powerful in a crossover. His Sharingan abilities, especially when he awakened the Rinnegan, are off the charts. He can control powerful jutsu and has a great deal of combat knowledge. In the Fate world, he would be a force to be reckoned with. He could potentially outwit and overpower many Servants. But again, it's really hard to determine an absolute most powerful as the two universes have such different power systems.
Sasuke with his Rinnegan and all his ninja skills would also be a top contender. He can teleport, use powerful fire - based jutsu and has a lot of combat experience. In a 'naruto fate crossover fanfic', he could face off against Servants like Archer, who is known for his long - range attacks. But then there are also the Fate characters like Saber, who has her Excalibur. If she were to face off against Naruto or Sasuke, it would depend on the situation and how well each character uses their abilities.
It's hard to say for sure, but Naruto at his strongest form, like in his Six Paths Sage Mode, would be extremely powerful. He has incredible speed, strength, and the ability to use all kinds of ninjutsu. In the Fate world, he could give a tough fight to many Servants. However, some of the really powerful Servants like Gilgamesh with his vast collection of powerful weapons and his god - like status would also be a strong contender.
It could be Naruto. His ability to use chakra and his vast array of jutsus are very powerful. In the Fate universe, he might be able to combine his chakra with the magic there. For example, he could infuse his Rasengan with magical energy, making it even more destructive.
It's really hard to say who would be the most powerful. On one hand, in Fate Stay Night, Servants like Gilgamesh have incredible power. His Gate of Babylon contains countless noble phantasms. But in the Naruto world, characters like Naruto in his Six Paths Sage Mode are also extremely powerful. He has the power of the tailed beasts and can use all kinds of powerful jutsu. However, if we consider a crossover, it might be someone who can combine the powers from both worlds. For example, if a mage from Fate could learn to use chakra and combine it with their magic, they could be very powerful. Or if Naruto could somehow gain the abilities of a Servant, like the ability to use noble phantasms, he would be unstoppable.
It could be a character like Madara from Naruto. He has the Eternal Mangekyo Sharingan and all kinds of powerful jutsu at his disposal. He was able to fight on a large scale and cause a lot of destruction. In the Fairy Tail side, characters like Makarov might also be considered. He has a lot of experience and powerful magic. But in the end, it really depends on how the fanfic writer decides to balance the powers and abilities of all the characters in the crossover.
It could be Sargeras from World of Warcraft. His immense power as a titan could be really hard for Naruto characters to deal with. He has the ability to destroy entire worlds and his magical power is off the charts.
That's a tough one. While Goku has the ability to reach incredible power levels like Super Saiyan God and Ultra Instinct, Naruto also has some really powerful forms. His Six Paths Sage Mode gives him a huge boost. But if we consider the fact that Goku can keep increasing his power almost infinitely, he would probably be the most powerful. However, if Naruto were to somehow combine his chakra with the Dragon Balls' power, that could change things completely.
It could be Naruto. His ability to harness and control large amounts of chakra is already very powerful. If he were to also gain the ability to use the Force, he would be nearly unstoppable. He could use his Sage Mode along with the Force to sense danger from afar and attack with great force.
It's really hard to say. Naruto in his strongest form, like when he has the power of all the tailed beasts, is extremely powerful. He has incredible strength, speed, and the ability to use a vast array of jutsu. However, Aang in the Avatar state has access to all four elements and can be a formidable opponent. If we consider the Avatar state's spiritual connection, it could give Aang an edge in a battle of wills.
Sesshomaru could also be a very powerful character in this crossover. He has his own powerful sword, Bakusaiga, and his inhuman strength and speed. He is very experienced in combat against demons. Compared to Naruto's friends like Sakura, Sesshomaru would likely be much more powerful in terms of raw strength and combat ability. But Sakura has her own medical ninjutsu and superhuman strength when she releases her inner power, which could also be useful in different situations.
However, we can't forget about Steve. He has been living in the Minecraft world for a long time. He has in - depth knowledge of how to build the most powerful weapons and structures. He can use his pickaxe with great skill, which could be as effective as a ninjutsu in some cases. Also, his ability to survive in the Minecraft world's harshest conditions gives him an edge over the Naruto characters who are new to this environment.
Well, it might not necessarily be Naruto. Some of the more powerful Sekirei, if they were able to adapt Naruto's immortality concept, could become extremely powerful. For example, a Sekirei with the ability to control elements like Naruto and combined with immortality could be a force to be reckoned with. However, Naruto has the advantage of his ninja training and combat experience from a very young age.