Cosmic Garou VS Godspeed ( One Punch Man VS DC Comics )
Both started off as normal people who became angry with the systems of their world (Garou hates how the less popular were treated poorly and abused while Godspeed hates that the police let his brother’s killer walk free). This would lead to them developing their distrust and distaste towards the world of heroes, believing that they aren’t doing their job correctly. They believe that the justice that the world believes in is wrong and they need to step in to correct things. Both would become close to and be trained by one of the top heroes of their world, Bang and Barry Allen. They would be trained in similar techniques to these heroes (Garou learning the Fist of Flowing Water Crushing Rock from Bang and Godspeed learning how to better control the Speed Force thanks to Barry). However, both would betray the person who trained them and would brutalize their other students (Garou beating up everyone in the dojo before he left and Godspeed fighting and even killing some other Speedsters). ...