Wonder Woman is similar to Superman and Martian Manhunter in terms of strength and durability. But she has a few unique weaknesses as an Amazon-demigoddess that tend to be consistent for all versions of her character. She can be killed or injured with piercing weapons (arrows, bullets, swords, etc.)
The final verdict is that swords, spears, arrows, and bullets do and should pose a serious threat to Wonder Woman. This vulnerability doesn't diminish her, but makes her even more impressive.
She has no convenient weakness. She used to be rendered powerless if she was bound or shackled by a man, but that's been phased out. She would also go mad when her bracelets were removed. Not treated consistently either.
The Secret of Wonder Woman’s Bullet Blocking! (Because Science w/ Kyle Hill)
Who can easily beat Wonder Woman?
Wonder Woman's strength and powers are impressive, but she has been defeated by surprising opponents. Batwoman managed to beat Wonder Woman and nearly kill her using her combat skills and the lasso of truth. Swamp Thing easily defeated Wonder Woman without even needing to attack her, leaving her helpless.
As part of Batman's need to know how to fight all his teammates, he concluded that the only hero strong enough to stop Diana was Superman. According to Batman, Clark Kent was the only one who could match Wonder Woman's power and defeat her.
Many of Wonder Woman's most iconic images are of her deflecting bullets with her bracelets. The average speed of a bullet is somewhere around 1,700 mph, and Diana is easily able to dodge or deflect them. She's even faster than Superman in some instances, much to his objections.
Resistance to Extreme Temperatures. She reflects bullets and parries swords, but if you come at Wonder Woman with anything else, she's probably just going to shrug it off. She's unbothered by the cold and is basically straight up immune to fire thanks to Hestia.
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Though the Man of Steel fought with a frightening tenacity, Wonder Woman proved she's ready and able to take him down if she ever has to. Of course, both heroes have their own unique traits that make them quite amazing fighters.
Nevertheless, there is a legitimate answer to this question. In Wonder Woman No. 773, during the Afterworlds storyline, the Amazonian bests Thor. What's even worse for the God of Thunder is that Diana can lift and wield that comic book's version of Mjolnir.
She can easily survive under extreme pressures, cold, and heat. Wonder Woman has been able to traverse space, undergo submergence into lava, and withstand a direct explosion from a nuclear warhead unharmed.
"Though exposure to KRYPTONITE rays can harm SUPERBOY, a bullet made of it cannot penetrate his skin, because, unlike other materials from KRYPTON, KRYPTONITE is not indestructible. KRYPTONITE bullets or shells would merely shatter against his invulnerable body.
The Sword of Athena is an incredibly sharp and durable weapon, showing no apparent damage after Diana's extensive use of it. It is likely also magical in nature, as are many Themysciran weapons, due to its ability to injure otherwise invulnerable beings, like Superman and Doomsday.
Depending on the portrayal she is sometimes specifically vulnerable to piercing weapons, like bullets. Which is why she needs the bracelets to deflect them.
Since she doesn't have an easily exploitable weakness like Kryptonite, sorcery, yellow light, or flames, any fight she's in usually does boil down to raw power.
Wonder Woman can likely outrun and deflect Storm's primary offensive capability, giving her a decisive advantage, but Storm retains a powerful advantage. Her power is such that Storm can alter the air pressure to whatever state she wants, and she can also alter it within a human being.
Diana and Clark can both fly and have similar sets of flying abilities. Even if Superman and Wonder Woman each have varying speeds depending on their respective solar power and magical abilities, they usually fly at around the same velocities.
Efficiency, knowledge and experience will always beat raw speed. That is what enables Wonder Woman to run faster than the likes of Kid Flash and Godspeed, despite being unable to access the Speed Force like Flash can.
In terms of combat speed, Wonder Woman is above Thor. Thor has combat speed too, like fighting against Silver Surfer and tagging him, but Wonder Woman is more consistent and skilled to use her reflexes and speed in a fight.
The current Cheetah, Barbara Ann Minerva, is a former archeologist and treasure-hunter who sold her soul to the plant-god Urtzkartaga for power and immortality, not realizing she would be bound in eternal servitude to him. She, aside from Circe and Ares, is arguably Wonder Woman's deadliest archenemy.
Batman has devised nanites which, when injected into her body, leave Wonder Woman trapped in a virtual reality battle against an opponent she cannot defeat and who is her equal in every way. Her refusal to surrender under any circumstance would eventually cause her to tire herself out and die of exhaustion.
