There are many dangerous people in the comic universe, not just because of what ability they have but because of the person they are.
This is a battle for those who are just humans, not mutated, not altered, not enhanced, just a normal human with their tech or skills
So some people who are already out: Deathstroke, Captain America, Black Panther, anyone with enhancements of any kind.
Who is the most dangerous human, without their gear and resources.
Who is the most dangerous with all their gear and resources.
Now when I say gear I mean Dr. Doom's armor, Dr. Fate's helmet, the Batsuit. Etc. Not just specialized gear. Resources would we anything the person has themself. Like for instance Lex Luthor would have all the resources at his disposal from Lex Corp, but he could not say steal a green lantern ring.
When I say dangerous I mean, can take over/kill the world if not more.