Again, when there is canonical claim that there is a significant difference in Superman and Wonder Woman’s speed - she’s the one who’s claimed to be faster.
Superman is fast, indeed. But he’s not the gold standard of superspeed.
“Faster than a speeding bullet, more powerful than a locomotive, and able to leap tall buildings in a single bound” is a ~70-year-old phrase that more or less accurately described Superman’s power level when it was coined. If it’s used at all know, it’s out of a sense of tradition.
Actually, when he started flying (almost immediately, since jumping around like a giant grasshopper is kinda gay), the Fleischer/Famous cartoons (1941-43, available on YouTube and highly recommended) introduced variations on the phrase, including replacing “tall building” with “able to soar higher than any plane”. Some of the later toons started with “Faster than a streak of light! More powerful than the pounding surf! Mightier than a whirling hurricane!”
My take…
Strength: Edge to Superman
Invulnerability: Edge to Superman
Raw Speed: Significant edge to Superman
Ability to operate at top speed: Significant edge to Wonder Woman
Martial Prowess: Significant edge to Wonder Woman
Ranged Attacks: Edge to Superman
Scope of Powers: Edge to Superman
Ruthlessness: Significant edge to Wonder Woman
X-Factor: Edge to Wonder Woman (magic items)
Running multiple simulations through the battle computer, I have WW beating Superman by a 58-to-42 margin. Kal-El has the advantage when he uses a broader range of his powers and can keep much of the battle out of hand-to-hand, but as noted, he falls prey too easily to HtH combat, where Diana’s prowess and willingness to ‘go the extra mile’ win out.
If the info here: Wonder Woman - Wikipedia is correct, I do not even see how there is a question. Superman would win with little effort, if he really was out to win the fight that is. Her skin is hard, but can be cut by sharp objects. So she is nowhere near the level of Superman.
One of the reasons that the writers make Superman out to be dumb is just to get a story.
If they wrote him as truly invulnerable, then every episode would be much more boring, so they have him being a bit dumb, or they inflate his weaknessess.
Superman isn’t mentally dumb, and oftentimes he will win out becuase he uses a strategy that only comes to fruition in the last three or four frames, when he suddenly reveals to he reader something that he figured out in the first four frames.
He has a lot of technical knowledge, he was very well educated from materials that were bequeathed to him.
I have noted a few times that he is very deceptive, you don’t always know what angle he is working on, which is why there is so much material for the ‘Superman is a dick’ website - in essence that website is dedicated to his ability to appear as one thing, whilst doing quite something else - in other words, Superman takes a longer term view, he is crafty, and he is clever and willing to take some knocks to achieve his objective.
“While not invulnerable, she is capable of withstanding great concussive force,[25] shrugging off high-powered rifle fire with some pain but little injury,[29] being knocked through a building, and even surviving a warp-core explosion.[30] She is durable enough to survive the rigors of space until she runs out of breath. While her superhuman strength affords her great resistance to blunt-force trauma, her skin can be cut by weapons if they are sharp enough.”
That is her post crisis powers. Superman would tear her apart.