Captain Marvel is the strongest of the Avengers, according to Kevin Feige as well. She would surely be on top if we were looking at the comics. While she possesses the standard superhuman skills, she also possesses a unique “seventh sense” that outperforms Spidey's sixth sense.

How Captain Marvel is so powerful?

Captain Marvel is so strong because the source of her powers is alien. Due to an explosion, her genetic code got mixed with Kree genes, which made her so strong, but also gave her superhuman powers, which – in turn – allowed her to become Captain Marvel.

Is Thor more powerful than Captain Marvel?

Let us see. Thor is definitely stronger than Captain Marvel, as is evident in the comic books published by Marvel. While both of them have truly immense powers, Thor being a god and having potential access to a wide array of Asgardian powers makes him the stronger one in this match-up.