Realistically, I would have to say… (and I hate to say it), Marvel.
With the whole mutant registration act story arc and the civil war story arc (where every super-powered individual has to reveal their identity), and the average citizens distrust of these “super-powered” individuals, is why.
Government crack downs, control and removal as a potential threat (“national security”), etc.
But for reading enjoyment, I am all DC, BTW.