So, since
Aiko Hatayama already
seem to stomp Ainz I will propose her with her After Stories key for 9-A. In summary she is someone that look like a cute child but have several haxs with her spirit magic (Arifureta ancient magic, so the haxs are based in law and concept type 2 manip), have the natural charisma to create a world-wide religion without wanting (she can futher boost her natural charisma with spirit magic if she actually desire), have an artifact in a pocket dimension (which is connected to
Hajime own pocket world) that automatically revive her or heal any detected abnormality with time manip, have 7-A monsters accompanied with a sea of trees that use spirit magic to affect people perception, have infinite energy with the protection wand (that control the planet energies, including supernatural energies) and necklace (seems like I forgot to mention that in her stamina section despite mention it in the rest of profiles so my bad there), and in times of emergency she teleport to the Nagumo house were Hajime and the rest of the wives live (the house itself is also a super defensive artifact with several things inside).
Btw, to futher support that Aiko should take Ainz spot will comment about the rest of below spots:
10.
Spongebob Squarepants: Get defeated with the effects of spirit magic, yes certainly Bob profile mention that he possible resist soul manip since his soul is apparently owned by others, I'm quite unsure if that would actually let him resist the direct soul manip of spirit magic but even under the assumption that it do spirit magic affect more than just the soul (spirit magic is magic to manipulate the concept of incorporeal elements of sentient beings, hence why it can also affect the mind, memories, dreams, powers aka powernull, and other things) so he would still be affected since he lack resistance to the other things or his resistances aren't strong enough. Bob also lack a way to counter the automatic revives, and with his character he seems very likely to also be outright affected by Aiko charisma.
9.
Mardicus: Have just tens of meters with abilities so he can't even affect her with the initial 4km distance, but on top of that he don't resist any of the spirit magic effects.
8.
Haruna (Arpeggio of Blue Steel): She lacks a soul so she should resist the soul manip (though spirit magic have show the ability to grant objects souls and control them, but is very unlikely that Aiko would do that) and while it mention that she resist mind manip do to be a machine in Arifureta machines have be affected before with mental powers so she shouls still be affected by the conceptual manip of elements of sentient beings of spirit magic.She don't have a way to put down Aiko with the infinite revives, Aiko can use the planet energy to her favor, and if things still look bad just go to the Nagumo house.
7.
Snatcher: Don't resist spirit magic or have a way to put down Aiko.
6.
Isaac: Don't have the range to affect her at the beginning of the combat while his resistances aren't strong enough to resist spirit magic, stat wise she would also stomp him with her plants, he can't put her down, and considering how he is a poor kid her natural charisma should be hyper effective against him.
I don't know about the Hellper verse so can't argue for a higher spot against them, and while the Hero don't seem to resist spirit magic he apparently have nonexistent physiology (though don't look updated to the new standards) so I'm not sure if Aiko can interact with him to begin with.
