If I wanted to start an argument, I'd say that any movie where more than 50% of the frames are more than 50% CGI should be counted as "animation". Which covers most of those franchises.
They live on opposite sides of the uncanny valley. One is meant to appear completely realistic. The other is intended to be stylized, and would be ruined by being realistic.
It's one reason why live-action remakes of animated shows so rarely work. Humans can't act, move, or look like cartoons. The result is usually dull, not because anything looks wrong but because it looked so much better fully animated.
When you watch CGI superheroes, they're supposed to trick you into thinking you're watching a real thing. The filmmakers would have done it live if they could; the option simply wasn't available.