In Thor's comics, it's litterally, point blankly said Thor is stronger than Hulk and it says Thor's strength grows when he pumps himself up with his inner god-magic.
At his height, he's probably 20x stronger than Thing if not more. He's written as being stronger than everyone in his own comic, even people like Mephisto and yes, even Stranger. Make sense? No. But...what can you do?