This question was difficult to answer because superheroes and superheroes had different performances and characteristics in different sci-fi movies. It was difficult to determine who was the most dangerous. In some sci-fi movies, supersoldiers or superheroes usually have great strength, skills, and wisdom to fight against various threats such as aliens, villains, monsters, and so on. In these movies, they are often seen as heroes who protect the earth, and their actions can bring great victory. However, in other movies, supersoldiers or superheroes may be portrayed as dangerous enemies whose strength and abilities allow them to cause great destruction and damage. For example, in the Star Wars movies, the super soldiers and superheroes of the Imperial Army were portrayed as extremely dangerous enemies whose strength and abilities could cause great destruction and casualties. Therefore, it is impossible to determine who is the most dangerous because each superhero and superhero has their own unique performance and characteristics in different movies.