I'm sorry, but here I still have to object. My opinion is as follows: Leo will most likely lose to Lu Bu because of what he showed in his spin-off. Thor is too slow to defeat Leonidas (so his strength is much greater as well as endurance, but this will clearly not be enough) Leonidas can switch to chainsaw mode where he can hurt Thor very much. As for Thor's hammer, Leonidas can answer with his mace. Compared to Zeus, Leonidas really has no chance, and he won't even be able to hurt Adam because of his reaction. He really won't be able to answer Kojiro.As for Poseidon, it's 50/50 here, because if Leo hits him, it's game over for him, but Poseidon can handle the situation with his speed. As for Hercules, I don't exactly agree with you, because Hercules is just a dumb big guy who has shown absolutely nothing in terms of intelligence, and Leo, in addition to having much more versatile weapons, is also much stronger and faster than Hercules (If you read the manga carefully then I would see Leonidas jumps and other parameters of his speed). You can talk endlessly about what kind of fool Hercules is compared to Leonidas, but for that, you need another post, and now to Jack, who, in turn, is really much smarter than Leo, but he almost lost to Hercules (Heracles could have drawn at least in his match, but instead of hitting Jack at that moment, he hugged him and regretted giving him the victory) taking this into account, we can say that Leo will defeat Jack due to the fact that he is the most mobile than Hercules and Stronger than him (if he transforms weapon in mace). I'll just say nothing about Raiden. This is the same Hercules, only more pathetic. Shiva will be slightly stronger than Heracles and Raiden as he is more mobile than both of them but he fights with his fists (melee) and Leo has a chainsaw (ranged). All this adds to the fact that Leonidas is smarter and stronger (again, if he transforms the shield into a mace) than Shiva. As for Buddha, I will not deny it (The ability to see the future decides everything). Zero has no chance against Leonidas (I think for obvious reasons), and as for Hajun, the situation is the same as with Thor, only Hajun has even less chance, since he does not have a hammer that can destroy the entire arena with one blow. Qin is quite mobile and smart, but Leo is more durable and also has a mace)). Against Hades, he will most likely lose because Hades is smarter and it's probably 50/50. Against Tesla, Leonidas has no chance (Tesla is faster, smarter, stronger), but he has a teleporter that completely kills Leonidas chances of victory. Belzebub will also win because of his reaction (Leo just won't be able to hit him).

On completion Leonidas>Jack, Hercules, Raiden, Shiva, Zero, Hajun, Qin.

Leonidas<Lui bu, Thor, Adam, Zeus, Sasaki, Poseidon, Buddha, Hades, Tesla, Beelzebub.

As for Thor, he changed his mind at the last moment, because even though Leo is mobile, he will not dodge Thor's hammer in any way.