Naruto could be the main character. He has the spirit and determination to adapt to the new and dangerous world of Planet Hulk. His ability to make friends and his never - give - up attitude would make him a great fit to be the central figure in this fanfiction.
It depends on the situation. In terms of raw physical strength, the Hulk is incredibly powerful. He can smash through mountains with ease. But Naruto has his own set of skills. His ninjutsu, like the Rasengan, can cause a great deal of damage. Also, Naruto has the power of the Nine - Tails, which gives him a huge boost in chakra. If they were to fight in an open field, the Hulk might have the upper hand in a direct physical clash. But if Naruto can use his ninja skills to his advantage, like creating diversions with clones and hitting the Hulk from unexpected angles, he could potentially win.
The Hulk is the central character in 'planet hulk graphic novel'. He's joined by Caiera. She's a native of Sakaar and she and Hulk have a relationship that develops over the story. Korg, a fellow gladiator, is another important character. He's a rock - like being. And we can't forget the Red King, the bad guy who rules Sakaar with an iron fist.
The Hulk could still be the main character as we follow his journey of redemption. He might be trying to regain the trust of the people and his fellow heroes.
One interesting idea could be the fusion of Naruto's ninja world with the Planet Hulk concept. Maybe Naruto characters having to deal with the harsh environment of Planet Hulk. For example, Sasuke might find new and powerful opponents there that force him to adapt his Sharingan abilities in unique ways.
The Abomination could be a great main antagonist. He already has a history with the Hulk and his hatred for Hulk could extend to She - Hulk as well. He could be trying to create a new gamma - based weapon to finally defeat the Hulks once and for all.
Maybe the main antagonist is an artificial intelligence on the Clockwork Planet that views Naruto and his chakra abilities as a threat to its control over the planet. It starts to send mechanical beasts to Naruto's world to capture him and study his powers. This AI is highly intelligent and has a vast network of clockwork devices at its disposal, making it a formidable foe for Naruto and his friends.
Well, the key events start with Hulk's banishment. Once on Sakaar, he's immediately thrust into the gladiatorial combat scene. He starts winning battles and gaining a following. There are events where he meets different characters in the gladiator pits, some who will be important allies later. As he becomes more powerful and popular, he begins to plan his revolt against the Red King. His battles against the Red King's forces are also major events, leading to a new order on Sakaar.
The main plot of 'Planet Hulk' Graphic Novel is that the Hulk is exiled from Earth by the Illuminati. He lands on a planet called Sakaar. There, he is made a gladiator. He has to fight in brutal battles. Eventually, he rises to power and becomes a leader among the slaves. He then starts a revolution against the planet's tyrannical rulers.
Obviously Naruto would be one of the main characters. He would be the one to bridge the gap between the ninja world and the Planet of the Apes. Also, the ape leader, like Caesar from Planet of the Apes, could be a main character. Their interactions would drive the story forward.
It could also be a young apprentice of the shopkeeper. This character could be learning the ropes of running the shop while also having dreams of becoming a great ninja. They would be in a position to interact with both the regular customers of the shop and the more famous ninjas, which could lead to all sorts of interesting storylines.