15Could Destroy Superman: Sentry
The Sentry is a fairly unknown Marvel superhero when compared to the likes of Iron Man or Captain America. In my book, he's the best bet the Marvel Universe roster of heroes would have at defeating Superman. His strength levels are off the charts, but he has a very dark
side that sometimes takes over control of the hero. I think this is what fundamentally sets the character apart from Superman because you get to see someone with God-level powers have a fatal flaw, and that's what makes for compelling storytelling and characters. Superman is too perfect in just about every sense of the word, and his lack of constant imperfection makes him a static unchanging character. And to be honest, Sentry at his full power capabilities could probably give Superman a run for his money and then run him into the ground. Hopefully, Sentry gets his own film soon!