From everything I have read online TOAA and The Source are the same being, The Source is above everything physically in the Multiverses, sorta like the meaning The One Above All in Marvel, The Source/TOAA is a very big part of Yahweh, it is Gods Will, The Phoenix Force is the TOAA/The Source aspect or a avatar working for it. The Presence is sometimes called The Ultimate Light/The Holy Spirit, when someone is talking too The Source or The Presence they are indirectly talking to God "Yahweh". another one of Gods aspects is The Word, it is Gods manifestation in the flesh, the very first Archangel aka Jesus Christ. The Great Evil Beast is The Presence only equal and opposite, The Beast represents everything The Presence is not, it is Gods balance. The Beast even went to The Silver City to ask God why he was here, meaning God himself was here before The Beast.
This is how I understand DC/Marvels hierarchy, beings right below Yahweh are, The Presence/The Source/The Beast, The Voice/The Word, Decreator, Lucifer Morningstar, Archangel Michael, The Spectre, The Living Tribunal, Archangel Gabriel. The Phoenix Force.
and umm The Source/TOAA wins easy.