.. A Perfectified Ten Tails', Etherealite, Spirit, God Madara wins — in my opinion.
I don't think that Kinshiki possesses the hype, or features, necessitated to trounce the likes of a Penultimately, Perfectified Ten Tails', Etherealite, Spirit, God, Madara.
Kinshiki possesses hype that implies that he can split a planet, however, I believe, this isn't any different to how the likes of Temari is stated to possess the " .. Power to blow away the entire universe.. " .. One could argue that the former possesses significantly greater power pressure potency in contrast to the latter — as in limiting the emitted energy to a smaller area — resulting in a significantly more lethality of an attack, however, it's explicitly exemplified that the former possesses significantly inferior power pressure potency, as his best feature is splitting a significantly Emaciated, Etherealite, God, Spirit Tree.. I don't think that the likes of Temari couldn't acclimatize to this feature, as she ripped a significantly Weakened A3's Godlike Spirituality Armory with little supplemental assistance.. (ie., The Databook 4 explicitly states that Å3's Electricity Enrichified Armory (Databook Four; — Lightning Release: Lightning Element Spiritual State [.. ] .. ) is filled to the brim with ethereal, spiritual, magical, essence.. by utilizing the term "godlike.. ", and it's intuitively grasped that, since, gods exist in the ethereal, spiritual, magical, realms, they possess ethereal, spiritual, magical, properties.. ) ..
Therein, it's likely that Madara can extrude a Ten Tails' Spiralling Spiritual, Gargantuan Magic Sphere, Etherealite Explosive Ball, to bypass the Kinshiki's durability, like the Ten Tails' acclimatized in the WA — exterminating a full continent in it's wake — with a Spiralling, Spiritual, Streaming, Explosive Ball, Sphere Beam..
A Perfectified, Etherealite, Spiritual, Ten Tails', Enrichified, Perfect Susano'Ō, would also, be a sight to behold.. in my opinion. I don't see what the former is supposited to acclimatize, against that.. tbh..