Batman & Green ArrowvsEren Yeager (AOT) & Levi Ackerman (AOT)

Eren Yeager (AOT) & Levi Ackerman (AOT) It's not uncommon for Levi to fight against - and defeat - multiple titans by himself.

Remember even only ordinary titans have significantly superhuman statistics, especially their strength and stamina / regeneration would normally make it impossible to defeat them for ordinary people.

Of course there's people with (low) superhuman statistics in Batman's comics, too, for example Bane or Deathstroke, but as you probably remember Batman usually has a very difficult time at handling these sorts of "superhuman" threats (even when he wins, eventually).

I think that even only a 4-5 meter tall Titan would already be way above even the likes of Bane, in terms of raw power, and of course the bigger and taller the Titans are, the more powerful they get.

And Levi being able to defeat easily 10 or more titans by himself in battles, should give you an idea of just how insanely skilled and strong Levi must be, to compensate for the difference in physical stats.

Levi by himself would already be too powerful to handle for Batman / Green Lantern, add to this Eren who can easily transform at least into a 15-meter tall Attack Titan even in his weaker variations very early in the story, you can easily imagine how hopeless the situation for Team Batman really is.

Team Eren / Levi is just too powerful.