system
Given the following post, respond as if you're commenting on Reddit:
human
Who could Batman not beat? (all comic books)

It is generally well-accepted that Batman could take down anyone if given enough time for preparation and planning (not necessarily kill them, due to moral implications, but he could at least restrain them). We already know he has plans in place for all of the Justice League, including a kryptonite bullet for Superman. So is there anyone across all comic books that Batman feasibly couldn't take down, even with ample time for planning?
gpt
Dick Grayson, Barbara Gordon, or Tim Drake would all provide a reasonable challenge. The three of them working together could almost certainly take the Bat down. Jason Todd's tendency to abandon plans in favour of blind rage make him less of a contender by himself.

Assuming both have the same planning time, Deathstroke or Ozymandias would be capable of matching Batman tactically (Deathstroke could also overpower him physically).

Tony Stark or the Superior Spider-Man would be able to match the Bat, but their respective egos would be exploitable.

Hit-girl.