Powerful anime shonen protagonists past and present are heroes who will fight any foe, against any odds, to save the day, even if they must face their friends or allies. In the My Hero Academia world, Izuku Midoriya is the star, and he has formed an intense rivalry with his childhood friend, Katsuki Bakugo, to see who can become the next symbol of peace first. In the Naruto world, Naruto has a fierce rivalry with his frenemy, Sasuke Uchiha.
What if worlds crossed, and Izuku developed a rivalry with Sasuke instead? Izuku is burning with ambition to surpass the great All Might and prove why he was worthy to become that hero's heir. But what would happen if he faced Sasuke Uchiha, who's ready to prove his family's reputation on the battlefield? Let's pit them against each other, and find out.
Izuku Midoriya's Skills & Powers
In Naruto terms, Izuku Midoriya is a taijutsu expert, using his One For All Quirk as a sort of melee-based ninjutsu. Izuku had a crash-course in combat training with All Might, having had no proper training or combat experience before age 14. In one year's time, Izuku performed endless strength/endurance training and martial arts training with All Might, and he later learned a great deal more from All Might's own teacher, the elderly Gran Torino. Izuku quickly absorbed Gran Torino's lessons, learning to enhance his mobility and make more sustainable and efficient use of his Quirk and his bodily stamina. By now, Izuku has advanced martial arts techniques for his age, and he has the drive to constantly learn new moves and hone them.
Izuku's Quirk is One For All, is a power-charging Quirk. With it, Izuku can release devastating blasts of power, but he has to scale it according to his physical endurance; as of the anime, he cannot yet use One For All at 100 percent consistently. He can, however, easily use five percent of its maximum strength, and he can perform Smash attacks with his fists to blast away his enemies and create strong winds. With his Smash attacks, he can obliterate the ice formations of Shoto Todoroki, and strike even against Shoto's fire half. In addition, Izuku can spread One For All evenly across his body with the Full Cowling technique to enhance his physical abilities without undue strain. He has learned to perform a variety of kicks as well, and he can leap rapidly from one spot to another while using Full Cowling.
Izuku can also use his analytical mind to assess his enemy's Quirk and strategy, a holdover from the days when he studied other people's Quirks instead of having one himself. He has a vast storehouse of Quirk-based knowledge in his head, giving him strong intuition.
Sasuke Uchiha's Skills & Powers
Like Izuku, Sasuke is an expert in taijutsu, though it's not his specialty (he focuses more on eye jutsu). Sasuke boasts formidable speed, strength and technique like Rock Lee, and he has a vast amount of chakra to back all this up. Sasuke is also known to combine his Chidori technique with his taijutsu, so he can get up close and personal and deliver a knockout attack at knife range. When he activates the cursed seal that Orochimaru gave him, his physical prowess becomes even more formidable. He is known to carry a sword as well and charge it with his electrical chakra to stun any enemy it hits.
Sasuke's jutsu arsenal is his main asset. He can perform the fireball jutsu, an Uchiha family staple, and he can use all five elemental releases in battle, such as the Chidori (lightning). His eyes are his best weapons; Sasuke inherited the Sharingan Eye (as did his daughter), allowing him to track his enemies and study their jutsu, and he can use the Mangekyo Sharingan as well to create the all-consuming black fire Amaterasu or the Susanoo. In addition, Sasuke can perform summoning jutsu, often summoning hawks or snakes in battle.
Sasuke's mind is yet another weapon of his, and he is quite cunning. He never reached the heights of Shikamaru Nara, who is a tactical genius, but Sasuke is still savvy enough to strike his enemies when they are weakest or most vulnerable. He used genjutsu to deceive Danzo the Hokage in their duel and take him down. Sasuke always makes sure that he knows his enemy's strengths and weaknesses before fighting them -- he's not the type to rush into battle or seek a challenge for the fun of it.
The Battle: Izuku Vs. Sasuke - Who Would Win?
Izuku would start the duel more seriously and intensely than Sasuke. Izuku would know at a glance that he is dealing with a strong opponent, so he'd open with Full Cowling to enhance his mobility and attack Sasuke from all kinds of angles. Izuku would test his opponent with regular kicks and punches, which Sasuke would evade with the insights of the Sharingan Eye. This would just be Izuku's warm-up, though -- he can boost his speed further to catch Sasuke by surprise with a Carolina Smash or a Detroit Smash. This would be when Sasuke gets serious.
Sasuke's Chidori wouldn't be strong enough to meet a Smash attack head-on, so Sasuke can outmaneuver Izuku and catch him with the Amaterasu, the black flames, instead. That alone should be enough to finish it, and if it's not, Sasuke can still use a Chidori lance to impale Izuku with lightning and stun him into submission.