It's a tough call.
I'm
enough that I remember being
when I saw Superman on VHS in the 80's as a kid. Batman 89 felt like that formula taken a step further
I agree that Blade started a new chapter for the genre as we know it now, though. That film had bigger ambitions than technology of the time could properly translate in some ways.
They also nailed the idea that a comic book movie could cross over genres. That movie always felt as much a horror/thriller as a CBM to me. Dark Knight took that philosophy and applied it to psychological drama. It always felt like a great crime drama where the protagonist just happened to be Batman and the villain just happened to be The Joker. Same way I think about 'Winter Soldier' as basically a spy movie.
Watching the evolution through the decades has been crazy though.