Lullabelle for strongest High 1-C and here's why (note: this powerscaling chain is subject to change)
>Multiple Chief Gods of a myraid of mythologies long forgotten by Man are High 1-C
>The King of Humans is immensely above these gods.
>Indra, Zeus, Poseidon, Hades, Odin, etc. are far above them.
>Izanagi and Izanami are above them.
>Azrael, Mammon, Beelzebub, Abbadon, Mammon, etc. are significantly above them.
>A dying Lullabelle with only 1/∞ of her power is above them significantly. She gave birth to an infinite 11D space including its concepts of space, time, duality, causality, parallel worlds, abstractions, etc.
>Ishtar, Ereshkigal, Parvati Isis, Ishmael, etc. are > this.
>Lucifer, Satan, Michaella, Raziel, and the other Seraphic Arcangels a.k.a Lullabelle's sisters.
>Vishnu, Shiva, Brahma are somewhat above them.
>Tiamat, Yggdrasil, Lumineria, etc. are far above them.
>A dying God and Krishna's most prominent manifestations are ridiculously beyond them.
>Gabriella after she kills God is stronger than them.
>Mem Aleph should be still superior to Deicidal Gabby.
>Full power Lullabelle
She's strongest by AP alone as everyone listed here has myraids of hax.