One thing the MCU has done successfully is to spread out the heroes contribution making it work as a team effort.
There's different aspects to each character that can play a role in a battle scenario. There's the tech, the brains, the muscle, the raw power, the leadership, the aerial/ground threat...
Right now Thor is arguably the most powerful avenger. He has that innate lighting power of his coupled with insane durability, godly strength... Then you add in Stormbreaker which significantly increases his fire power, serves as a long range weapon, gives him flight, the ability to summon the bifrost... Right now making Thor head and shoulders above his teammates.
Then Marvel decides to introduce Captain Marvel who is suppose to be the "most powerful" hero. We already had glimpses of what she is capable of doing. She seems to be incredibly strong, she can survive and successfully fly and fight in space, she apparently is one of the only characters that can survive the quantum realm whiteout a protective suit, she has those massive power blasts, she seems to be able to fly faster than anyone else, she's skilled and is not dependent on any weapon other than herself to deliver massive feats at anytime.
Last but not least in the list of powerhouses we have Hulk. Who has nearly unmatched strength, incredible durability and rage capable of increasing his already insane physical abilities. In AEG he seems to become even more formidable because of his Professor Hulk persona. A character as strong as Hulk is a sight to behold but when you add in the intelligence of Banner it just makes for a scary and very dangerous character who's not only going to outsmart but also overpower almost anyone. So for example take what we saw in the begining of IW in the Thanos vs Hulk bout and add Banner's intellect... that drastically changes things.
So long story short, Thor's level will soon be matched by 2 incredibly powerful and intelligent characters capable of performing insane feats, filling in the power gap and leveling out several characters influence in the team.
