Aye!Alex here once again with a battle requested by choyfider and its gonna be a handicap for this one!Son Goku,Ben Tennyson and Superman will battle the purple looking dude Thanos!Lets just get into the information!(Note:I will shorten the info and use choyfider's way of displaying the powers and abilities)
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Son Goku(DBS)
Powers And Abilities:
+Kamehameha
+Spirit Bomb
+Solar Flare
+Dragon Fist
+Superhuman Strength
+Superhuman Speed
+Superhuman Agility
+Superhuman Reflexes
+Expert Combatant
+Martial Artist
+Superhuman Stamina
+Superhuman Vision
+Flight
+Invisible Eye Blast
+Nigh-Invulnerability
+Destructo Disk
+MAFUBA

Forms
+Kaioken(1x,2x,3x,4x,10x & 20x)
+Super Saiyan(50x)
+Super Saiyan 2(100x)
+Super Saiyan 3(400x)
+Super Saiyan God(110x Billion)
+Super Saiyan Blue(165x Billion)
+Super Saiyan Blue Kaioken(1650x Trillion)
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Ben 10(Ultimate Alien)
Forms:
Big Chill
Abilities:
+Cryokinesis
+Intangibility
+Flight
+Ice Flames
+Underwater Breathing
+Temperature Resistance
+Enhanced Strength
+Enhanced Durability
+Enhanced Agility

Cannonbolt
Abilities:
+Spiked Shell
+Spike Projectiles
+Sphere Transformation
+Enhanced Strength
+Enhanced Durability
+Mobile Invulnerability
+Sharp Claws
+Enhanced Speed
+Radiation Immunity

Echo Echo
Abilities:
+Sonic Screams
+Audiokinesis
+Flight
+Sonic Force Fields
+Enhanced Strength
+Enhanced Durability
+Space Survivability

Humungousaur
Abilities:
+Enhanced Strength
+Enhanced Durability
+Enhanced Agility
+Enhanced Jumping
+Limited Space Survivability
+Spiked Shell
+Mace Tail
+Missile Generation
+Missile Hands

Spidermonkey
Abilities:
+Enhanced Strength
+Enhanced Agility
+Web Spit
+Wall Climbing
+Enhanced Durability

Swampfire
Abilities:
+Pyrokinesis
+Chlorokinesis
+Enhanced Strength
+Enhanced Durability
+Enhanced Agility
+Fire Bombs
+Pyro Immunity
+Flight (via Propulsion)
+Underwater Propulsion

Way Big
Abilities:
+Enhanced Strength
+Enhanced Durability
+Cosmic Rays
+Cosmic Disks
+Flight

Wildmutt
Abilities:
+Enhanced Strength
+Enhanced Durability
+Enhanced Agility
+Enhanced Hearing
+Enhanced Smelling
+Sharp Teeth
+Sharp Claws
+Sharp Tail
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Superman(New 52)
Powers And Abilities:
+Solar Radiation Absorption
+Superhuman Strength
+Superhuman Speed
+Superhuman Agility
+Superhuman Reflexes
+Superhuman Stamina
+Flight
+Heat Vision
+Nigh-Invulnerability
+Super-Breath
+Superhuman Senses
+Superhuman Hearing
+Superhuman Vision
+Telescopic Vision
+Microscopic Vision
+X-Ray Vision
+Thermal Vision
+Expert Combatant

VS

Thanos
Powers And Abilities:
+Superhuman Intelligence
+Superhuman Strength
+Superhuman Speed
+Superhuman Stamina
+Nigh-Invulnerability
+Accelerated Healing Factor
+Superhuman Agility
+Superhuman Reflexes
+Energy Manipulation & Control
+Telepathy
+Matter Manipulation & Control
+Flight
+Infinity Gauntlet
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MANHATTAN
The city is in panic.There were helicopters falling from the sky,cars exploding,heroes dying.The police and the army can't even do anything about this.What is "this" you ask?This is Thanos.

Thanos walks in the middle of the road,back handing everything that stands in his way.One of the Avengers arrives,the one who is called Iron Man.Stark tries to stop Thanos,but he gets defeated pretty quickly.Suddenly,a boy wearing green comes to the scene and shouts at Thanos,getting his attention.The boy then transforms into a big green beast called Humungousaur and throws a jab right at Thanos' face,sending the Mad Titan away.This boy is none other than Ben Tennyson.

Stark looks at Humungousaur and flies away to get help,but right after he flies away,two guys lands beside Humongousaur,one wearing an orange gi with blue shirt,sash and boots while the other wearing a suit that has an "S" on the chest.These two are the ultimate warriors,Son Goku and Superman.

Thanos stands and looks at the three challengers in front of him.The Mad Titan smirks and leaps at all of the three,punching Goku away first.Superman kicks Thanos's gut and uppercuts him away while Humungousaur shoots out multiple missiles at Thanos.Thanos crashes and bounces off a building,violently crashing upon a car.Goku turns Super Saiyan 2 and charges up a Kamehameha,appearing right in front of Thanos' face and shooting out a big blue beam right onto Thanos' chest.Thanos screams in pain,but he grabs Goku's face and slams him into the ground continuing with a big punch right into the gut,throwing Goku away.Superman comes and headbutts Thanos on the fore head,kicking the Mad Titan's gut harshly.Thanos grabs a speeding motorcycle and slams it right on Superman's head,continuing with a powerful hook that sends Kal-El through mutiple buildings.

Ben runs at Thanos and uses his tail,slamming it right on Thanos' face.He then shoots so many missiles upon the laying Thanos,creating craters nearly everywhere.Thanos gets up as if he wasn't even effected by the missiles and grabs Humungousaur's neck,punching his repeatedly on the gut.Thanos then slams the injured Humungousaur into a wall of a building and drags him through the walls,making the building fall in the process.Thanos throws Humungousaur away and laughs at him.Humungousaur turns into Ben and the Tennyson is injured really badly.Although the injuries are badly effecting him,Ben gets up transforms once again,this time he turns into the Ultimate Way Big.

Out of nowhere,Goku comes and punches Thanos so hard that the ground shakes violently.Thanos crashes into a car,then gets drop kick by Superman on the side of the head violently.Thanos falls to the ground and gets a big stomp by Way Big.Way Big keeps stomping the fallen Thanos until the Mad Titan catches Way Big's feet and pushes him off.Thanos uppercuts Superman and grabs him by the cape,crashing him upon cars,ground,trucks,buildings and etc.Goku stops Thanos' attack by using a powerful roundhouse kick to the face and a Kamehameha that sends the Purple Titan away.Thanos gets up and leaps at Way Big,punching his gut so hard that the giant crashes through buildings continuously.Way Big stops at the 8th building and transforms into another being called Wildmutt.

Thanos jumps right onto Wildmutt and is in anger.Thanos had enough of this continuously-transforming boy.Thanos grabs Wildmutt's upper and lower jaws,quickly pulling them apart.Before Thanos could actually tear the jaws apart and break them,Superman arrives and punches Thanos into a building,saving Ben from death.Ben transforms back to himself and black out of the injuries he has taken,while Superman flies straight at the recovering Thanos.Before Thanos could actually recover,Superman throws a powerful uppercut that sends Thanos through the floors of the building,bursting out of the roof like a sniper bullet that got through its target.Goku appears at the mid air Thanos and throws an axe handle right on the Mad Titan's chest,sending him right back down through the building,causing the huge building to collapse.

Superman and Goku lands beside the collapsed building and waits for the Mad Titan to come out.Suddenly,Thanos flies out and lunges at Superman and Goku,using a double lariat right on their necks.Superman gets up quickly and punches Thanos,only to get his hand hurt.Thanos punches the living hell out of Superman with a gauntlet,but not just any gauntlet,the Infinity Gauntlet.Goku turns into his second strongest form,the Super Saiyan Blue.Goku quickly uses Instant Transmission to teleport right behind Thanos and use a normal Kamehameha to the back of the Mad Titan.Thanos isn't phased even a little,back handing Goku like he was nothing.Goku throws thousands of blows,but nothing really damages Thanos.Thanos punches Goku's gut,kicking him away into the air.But,Thanos didn't know that Goku isn't even using half of the Super Saiyan Blue's power.

Superman flies and grabs Thanos by the neck,punching him repeatedly with blows that can destroy the whole world.Thanos slaps Superman onto the ground and throws multiple punches that creates craters around them.Thanos keeps beating Superman effortlessly onto the ground while Goku is charging a powerful Kamehameha in the sky using the final form,Super Saiyan Blue Kaioken 10x.Thanos didn't notice Goku,but Superman did.Superman yells out and uses his own final form,The Super Flare.Thanos covers his eyes,and Super takes the opportunity to grab Thanos by the arms and lock him from moving.Thanos tries to escape,but it is to no avail.Superman flies Thanos straight to Goku,while the Saiyan on the other hand shoots his Kamehameha beam at Thanos.Thanos and the beam clashes and creates a big explosion that covers the whole sky with smoke.Goku and Superman falls to the ground and shakes each other's hands in victory.