I lean toward [A] over [B]
because [reasoning]. Make
the strongest case for B,
then tell me which of my
reasons for A survives it.

Steelman Both Sides Before I Choose

The best case against you, then what still stands.

Prompt

I'm leaning toward [option A] over [option B] because [your reasoning]. Make the strongest possible case for B — the version its smartest advocate would make — then tell me which of my reasons for A survives it.