Thanos
Thanos has recently become more known to mainstream audiences, after he was revealed to be the big-bad of the Marvel Cinematic Universe in the mid-credits scene of The Avengers movie in 2012.
Although he hasn’t really demonstrated any power since that first appearance, he is clearly set to be incredibly powerful in the franchise – but it’s hard to see just how he could possibly compare to the version in the comic books.
The Mad Titan has the rare combination of massive cosmic power and a nearly unrivaled intellect – and that’s a potent combination to have. Not only can he physically combat some of the most powerful characters in Marvel comic books, he can also plot schemes that make him a threat to every living being in the universe – such as how he regularly gets his hands on items like the Infinity Gauntlet and Cosmic Cubes. He has the might and the mind to beat anyone he wants to beat.

