In terms of raw power, Goku outclasses Batman by several magnitudes. An argument could be made that Goku might be more powerful than anyone in the DC Universe.
Goku would win for sure. Because Goku is a saiyan which is far away stronger than an average human being. In case of Bruce Wayne i.e Batman, he is stronger than a normal human being, no doubt. But he is definitely not stronger than a saiyan.
Superman doesn't like fighting, but he knows how to end battles against powerful foes quickly. Goku is at a disadvantage against Superman for a lot of reasons. Once Superman knows what he's dealing with, he'll cut loose and take Goku down.
Superman can't match up to him in terms of reflexes, speed, and agility, which means Goku might be able to block any attempt of an attack from one of DC's strongest characters while landing some heavy blows of his own. Add to that his Saiyan pride and chances are, Goku wouldn't ever give up.
Between his ever-increasing strength, durability, and healing factor, Hulk has what it takes to survive Goku's most powerful assaults. Goku could stay out of Hulk's way for a while, but once he gets within the Hulk's grabbing range, the fight is over.
Thor also has tanked hits from Odin, who is far stronger than anyone Goku has ever faced. Wiz: Thor is also far smarter than Goku, and has fought opponents similar to Goku like Hulk or Sentry, and considering that Thor is able to damage Galactus, he could easily damage or kill Goku too.
In all honesty Goku is really strong. He has shown universal+ attack potency and would easily defeat characters such as captain America and Iron Man. He would have some trouble with the herald tier characters such as Thor, Silver Surfer and Beta Rey Bill with SSB.
Despite this, he was still one of the series' most powerful and proficient ninja, and is a master of more than a few techniques. Itachi would probably lose to Goku in strict hand-to-hand combat, although he could hold his own for a while, but Itachi's true strength lies in his non-physical capabilities.
While Thanos may be a more capable commander or general combatant, Goku is the perfect duelist and excels in one-on-one fights, arguably his best type of fight. That experience is much more relevant in a battle between the two, meaning that Goku comes out on top.
Even if Goku was able to use his highest form of power, Saitama's one-punch certainty means a fight wouldn't last for long. If we are to take Saitama's power and accuracy at face value, it almost doesn't matter who his opponent is — he would win outright.
Compared to a monster like Goku, Spider-Man is outclassed in nearly every way. Goku is leagues ahead of him in terms of raw strength and speed. Not even Spidey's healing factor is going to save him from the pain Goku will inevitably bring.
In terms of raw power, Goku outclasses Batman by several magnitudes. An argument could be made that Goku might be more powerful than anyone in the DC Universe. Even Batman's famous "Hellbat" armor likely wouldn't be able to bring the Saiyan warrior down.
There haven't been many times that Batman and Flash have fought each other, but in the rare times it has happened, Bruce Wayne has proven he has a few tricks up his sleeve that could be used to take down the scarlet speedster.
Flash might be the fastest man alive but he's no match for Goku. But being slower is what will likely save him if they ever met on the battlefield. A fight between DC's Flash and Dragon Ball's Goku would last only a matter of seconds based on their incredible speeds, but the outcome likely wouldn't be what fans expect.
The simplest answer, according to many animanga fans, is yes. Sure, Goku might not have Naruto's Tailed Beast Chakra and all the jutsu he happens to cumulate, but he has Zenkai and Hakai. One cannot forget that these techniques have the potential to destroy the realm of space and time.
Goku's efficiency and ability with ki attacks such as the Kamehameha also put him in a league of his own as one of the most powerful Dragon Ball characters in existence. Essentially, Goku is already a formidable foe without his Saiyan abilities, and this combination would make him the victor against Luffy's Gear Fifth.
Galactus may have immense power, but he needs to constantly feed on planetary-levels of energy to sustain it. Goku, on the other hand, often reaches his most powerful form when he's at the very end of his rope. So while Galactus would get weaker as the fight went on, Goku would get stronger, giving him the edge.
Goku would win no doubt. Even as a die-hard Naruto fan, Madara would have less than a 0.1% chance of victory, he would be lucky to even land a hit or scratch Goku. However, if genjutsu does affect DBZ characters, then Goku is in trouble because once he locks eyes with Madara, it's as good as over.
He has many kinds of abilities in his locker, such as Ultra Instinct, Hakai, and Kaio-en. The mastered Ultra Instinct allows his body to move on its own, while Hakai enables him to erase anything from existence. Goku is more than a match for Gojo Satoru and would come out on top if the two ever fought.
This is because even at his slowest, Goku is way, way faster than Naruto. If it ever came down to Naruto defeating Goku, all Goku would have to do is run away from him. As simple as that.
Ghost Rider can beat Goku. He/She's literally unkillable to Goku. The first supernatural Ghost Rider is stunt motorcyclist Johnny Blaze, who, in order to save the life of his father, agreed to give his soul to "Satan" (later revealed to be an arch-demon named Mephisto).
There's no question the Hulk is a near-indestructible force who comes out on top in almost all of his battles of pure strength. However, against Superman, he's outmatched. While Hulk's strength might rival that of the Man of Steel, Superman's other abilities give him a considerable edge against his opponent.
