1) Thor : God of Thunder
The God of Thunder is no doubt the most powerful avenger of Marvel universe. Thor had taken blasts from Celestials, crushed the Hulk, beaten the Iron Man and shaken the Multiverse with his overwhelming superpowers. He could kill a starving Galactus with his god-blast which is as powerful to take out three star systems all alone.
Thor went toe to toe with Thanos that nearly killed him with a stormbreaker throw that overpowered a blast from Thanos with six infinity stones and after all of this.
Hammer, Mjolnir allowed him to travel through space and time. Thor can manipulate weather such as creating rainstorm, thunderstorms, tornadoes and lightning.
Thor can live without air, food, water and sleep that makes him nearly immortal.
He is a former successful neurosurgeon, Dr Stephen Strange became the Ancient One’s disciple and learned mystique arts. He is described as “the mightiest magician in the cosmos” by Eternity in the Marvel universe.
Dr Strange has the time stone and can manipulate time as he defeated Dormammu by trapping him in the infinite time loop. Dr Strange can also use magic to defeat a number of strongest opponents.
Dr. Strange has a vast collection of spells and artifact at his disposal which give him access to most of the powers which includes Force fields, energy blasts invisibility, flight and illusion.
Captain Marvel is clearly one of the strongest hero the Marvel Cinematic Universe. Her character in the movie Avengers:Endgame is made like to look the strongest Avenger.
She is having unbeatable strength and charismatic superpowers that becomes very useful for beating opponents in a fist fight.
Captain Marvel is possessing superhuman endurance and durability which allows her to exist in space without assistance and she can also travel through the Quantum Realm. She is a born leader.
Tony Stark is a genius. He is not physically super-strong but that does not mean that he is weak. In fact he is one of the strongest Marvel universe character.
Marvel's greatest hero has defeated Thanos in a desperate attempt to reverse the effects of the Snap. He is a born scientist and due to his expertise at modern science, advance next generation technologies and weaponry he has performed miracles.
With the suit he has the capabilities to beat the Incredible Hulk and Thor in a one to one fist fight. Tony Stark intelligence and attitude is the main reason behind his powers suing which he can defeat opponents possessing much greater strength than him.
5)The Incredible Hulk
The Incredible Hulk possesses an enormous level of superhuman physical ability. Hulk's physical strength is limitless due to the fact that the Hulk's strength increases according to the level of great emotional stress and anger.
The Hulk uses his super humanly muscles to leap great distances. The hulk has beaten many avengers and he also once defeated captain marvel also only because of his endurance and capabilities.
In comics the Hulk can slam his hands together creating a splendid shock wave, His thunderclap has been compared to sonic booms and hurricanes. The Hulk has also shown resistance to extreme temperatures, mind control, poisons and nuclear explosions.