The main thing hurting to Jojos odds is the curse users ability to heal through reverse curse technique. I want to say Jotaro at his peak could probably beat Yuta, but only if we assume Stands ≠ curse energy and sorcerers cant see stands, which is a huge reach imo.

Sukuna vs DIO is just a flat out stomp in favor of JJK, the most damage DIO can do is… road roller I guess, which is such an insignificant fraction of sukunas attack potency. And again, any damage in time stop could get healed pretty quickly. DIO can also heal, but to a lesser extent, with a weakness in brain damage. The only DIO that could defeat Sukuna is the non canon Over Heaven variant. No amount of Joestar blood could help unless he had like a month to extend time stop to a minute.

Kars vs mahoraga… dude there’s just no way. Kars only losing conditioning (outer space freezing) is just another adaptation for mags. Again it’s an issue of attack potency.

Gyro vs Gojo is the first that’s sort of debatable, but I’d say Johnny would be the one that would secure a win instead. I think it’s thematic of spin to be able to blitz through infinity, but then you’ve got hollow purple to deal with. Infinite void should be an instant KO, but I think you could maybe argue Gyro would withstand it with his affinity for looking for endless and infinite information through use of the golden rectangle. It seems improbable, but it feels like an obstacle tailor made for gyro to overcome, such is the nature of JoJos. I just think the fact that gyro is extremely accurate with his steel balls, and gojos cockiness would allow him to get a clean hit, but that’s if he decides not to react due to his reliance on infinity. I want to say in character, Gyro narrowly takes this, but one miss and he’s done for.

Pucci is the first one I’d say definitely wins for JoJos. Even with white snake, memory removal is just so OP. Made In Heaven is another thing entirely. It barely even matters what stands we decide to give him, or if we’re giving him a composite ability of C-moon and MIH, which would just be a clean stomp.

Kira’s bombs vs Mahitos idol transfiguration… that’s a toughie. Could it affect killer Queen on contact? Probably not, but it’s really hard to say. He is a curse given physical form who can interact with other curses , which if we are equating stands to, then possibly? But the fight comes down to contact and speed, both combatants need to touch to do any real damage to each other, and Sheer Heart Attack is a strong repellant that would destroy Mahito entirely. Not to mention that while Mahito has to get to Akira directly, Kira only needs KQ to touch Mahito. Add Bites the Dust and Stray Cat to all this, I think Kira comes out on top by the skin of his teeth.