Guys let me tell you a secret that may help you resolve if a character is too powerful or not:
Tongue firmly in cheek.
Except in any Superhero ecosystem, relative strength is creative choice with an established scale defining characters. You can stop here or continue.
Now besides, giving many of the humans the equivalent of super human abilities like Hawkeye‘s uncanny ability with a bow, or Black Widow’s superior fighting ability, they tend to also bequeath these characters with an unusual ability to absorb physical punishment. Actually I’m not sure if either of them or Falcon would be categorixpzed as mutants, just humans with skills. Falcon, might just be a human with high tech gear similiar to Ant Man. All of Stark’s powers are by virtue of his suit. Dr Strange has marshaled mystical magic which includes some mystical armor.
Now when we move into mutant territory, it becomes more complicated. You always have to ask, would a projectile like a bullet reach the body though the shielding, and if it did would it damage the individual? For most of these characters, the answer is yes. But, Hulk appears to be physically immune to damage, bullets have no effect.
Also, frankly I had some issues thinking about Thor which moves us into God territory, when it comes to mortality, and the ability to be physically damaged, although we saw Hella remove one of his eyes. This can be described as God vs God Combat which would include celestials like Thanos and Ego, which infers other powers. Yet Ego had a physical brain like organ which could be destroyed by a physical blast. And Thanos’s arm was chopped off, but did that require a Super Axe wielded by a God? Yes, it might have.
So, anyway, the creative rules at play in Marvel characters specific abilities are sometimes hard to compare and that’s ok. The reason I commented on Carol Danvers is that she is unique in having absorbed the power of the Tesseract and functions as basically an indestructible force. Her performance in Captain Marvel seems to puts her in the top tier of powerful beings.