Folks, Superman has battled Aliens, Gods, alien Gods, robot, and of course, humans.

Even people say Lex Luthor is his greatest enemy, and he's human.

That got me thinking, you know which human would be worthy of challenging Superman?

No it's not Joker, and it's definitely not Batman.

But the head of the league of assassins.

Ra's Al Ghul.

Why him you ask?

three words

Tower. Of. Babel.

That should prove enough of a challenge to Supes, since he single handedly took down the Justice League (with the additional help) and not Batman. Besides Supes encountered Ra's and Talia in comics and tv.

These are my opinions

Tell me what you think

Ra's caught them by surprise in ToB. I don't think the same can be done twice.
Ra's has an army under his command and tech that makes Batman jealous so, yes he could be a challenge.

Ra's is just a human at the end of the day while Superman is FTL while being able to lift the weight of the planet with ease so uh yeah...

But then again Ra's is a pretty smart guy.He would more than likely attack the people closest to Clark(yes i think Ra's would know who superman is, he has his people).

He wouldn't try and hurt him physically but mentally and emotionally becuase Ra's is more of a strategist and he's been alive for centuries so every move he does is like playing chess,every move is precise it has a reason and you already know what your opponent is going to do before he does it.

it could work another story is Trinity he is a great villian in that

No.

Batman is better than Ra's I'm literally every way