goku vs the avengers?

So at school me and my best friend had this huge argument. Who would win in a fight? goku or the avengers? I say avengers, he says goku. Of course the avengers would win, because they have hulk. Captain america (with his invincible shield). Iron man (ehh not really that much help) Thor (he's a god -_-). Black widow, which means the power of shield along with the avengers. thats all that i can think of, the others are plain useless super heroes :/.

Also post below whether you think goku is better, or the avengers, and post how you would think they would fight