Superman's abilities endow him with the power to detect lies instinctively, yet Batman surpasses him in uncovering deceit.
In the "Kingdom Come" timeline, when confronted with his and Superman's counterparts from Earth-0, Batman astutely discerned the truth by scrutinizing subtle nuances in Earth-0 Superman's utterances.
Batman's relentless pursuit of truth elevates him to a superior detective status compared to Superman.

Superman's Kryptonian supersenses endow him with the capability to operate as a human lie detector; however, Batman asserts his superiority in detecting deceptions.
Caution! This contains spoilers for Batman/Superman: World's Finest #22!
Superman's extraordinary Kryptonian powers, which encompass x-ray vision and super-hearing, enable him to serve as a walking lie detector if required.尽管如此,正如《蝙蝠侠/超人:世界上最棒的》最近一期所描述的那样,蝙蝠侠认为他仍然比克拉克更擅长识别欺骗,而且有充分的理由证明他是对的。
DC's "Kingdom Come" continuity made its debut in 1996, introduced in a four-part miniseries authored by Mark Waid and Alex Ross, with illustrations by Alex Ross.
In Batman/Superman: World's Finest #22, penned by Mark Waid, Dan Mora, Tamra Bonvillain, and Steve Wands, DC's renowned duo finds themselves stranded in the Kingdom Come timeline. As they struggle to adapt, they are confronted by altered versions of themselves, manipulated by the nefarious Gog.
Kingdom Come Batman infers that the Batman and Superman from Earth-0 are genuinely relating their predicament. Superman declares himself a living lie detector, insisting he would have discerned any falsity. Batman disagrees, emphasizing that while Superman can sense untruths, it's only when he consciously searches for them, whereas Batman is constantly vigilant for deceit.
Batman and Superman, two of the most renowned characters in comic books, are now poised to demonstrate their supremacy as the mightiest members of the Justice League - by challenging the entire team.
Even in his altered state, Batman remains DC's premier detective.
Superman possesses an absurd array of abilities, occasionally making it challenging to envision anyone surpassing his capabilities. Powers like his extraordinary hearing and x-ray vision grant him the ability to discern deception with considerable accuracy. He can sense elevations in heart rate or abnormal perspiration, making it exceedingly challenging, yet not entirely impossible, to deceive him. However, as Batman highlights in World's Finest #22, Superman's powers are only effective when he's actively seeking deceit. Though highly intelligent, Superman doesn't match Batman's detective skills, as evidenced by Batman's astute observation.
Merely detecting lies isn't sufficient; recognizing truthfulness is equally crucial. During a confrontation with his doppelgänger from Earth-0 in "Kingdom Come," Superman misses a vital clue indicating the truth. As Earth-0 Superman reasons with Boy-Thunder, he repeatedly addresses him as "David," revealing his secret identity. This escapes Kingdom Come Superman's notice but not Batman's. Batman deduces that Earth-0 Superman's knowledge of Boy-Thunder's identity suggests his honesty. Remarkably, Batman's ability to discern truthfulness surpasses even Superman's, despite having no superpowers.
Batman Consistently Seeks The Truth, Even When Superman Does Not.
Superman is not impeccable, as he has been deceived and lied to in the past. This partly stems from the fact that, as Batman observes, Superman must actively seek out lies to uncover them. In contrast, Batman, renowned as the world's greatest detective, not only anticipates deceit but also stays vigilant for the truth. He listens closely for inconsistencies or overly convincing narratives, both of which can be telltale signs of falsehood. It is precisely this skill that enables Batman to surpass even Superman in lie detection.
The comic "Batman/Superman: World's Finest #22" is currently available for purchase from DC Comics, featuring the talents of Mark Waid as the writer, Dan Mora as the artist and cover artist, Tamra Bonvillain as the colorist, and Steve Wands as the letterer.