You don't ever really get your very own villainous plot line. Where as heros are automatically doing everything they should, fighting crime and saving people. You're a real hero and never a true villain, more like a glorified henchman. I do find plenty of character in the red side zones but ultimately prefer blue sides look. Being a hero is more relatable, too. I know the question was the opposite of my answer but I can't find anything that keeps me there. I do enjoy it for a bit of variety here and there though.