Superman is the best superhero says 7-year research study

Arguments over which superhero would win in a fight are as old as time itself. Cyclops vs Iron Man; Green Lantern vs The Flash; Hulk vs Deadpool; Spider-Man vs Wolverine; and, of course, Superman vs Batman. But what deciding on the single best superhero out of everyone? Students at the UK's University of Leicester have spent seven years researching and …