I definitely think the Daimos is low-key the most "powerful" sorcery, in terms of the raw potential it grants a practitioner, but it's compensated for by being easily the most dangerous. Even the Mandate and seemingly (probably for good reason) the Consult don't fuck with Daimotics, while we know that the mightier Ciphrang are unpredictable (see: Zioz and Kakaliol). And that's without bringing actual Gods into the equation, and we all saw what happened when even Kellhus can't control a "Ciphrang-God".
Two thoughts:
1. I wonder if the Gnosis actually can't even be applied to Daimotic sorcery. It sort of makes sense, considering the type of powers exhibited by the Ciphrang (Gods excluded) are very Anagogic -- vomiting pestilence or unleashing a wave of fiery wolves or flies, etc. Furthermore, given the terms used such as the Blind Necromancer for Iyokus and the use of "noomancy" as an alternate name for the Daimos all brings to mind the notion of how the Outside is a place of subjective/anthropomorphic/meta-psychological "innerspace". The Gnosis itself also seems increasingly like a more a "worldly" sorcery -- almost limitless power in the right hands, but a temporal one.
2. I personally don't think Kellhus is hiding in a head or anything (my theory/opinion on is this too insane for this post but I think Kellhus's current fate is "unique" and has to do with Seswatha and the metaphysics of the Gnosis and the Sacred Heart of Serwe and other crazy shit, I digress), however I do think it's interesting to consider the notion of Ciphrang being summoned even before the soul who went on to become that Ciphrang -- though I also think the greater Ciphrang are amalgamations of souls -- and that, for example, Zioz could have in fact been Achamian-as-Ciphrang (or someone else) and for this reason it did not kill him at the end TTT so much as kinda bring him away to safety in a weird way?
There's also the weird (very possibly meaningless) occurrence of the name "Hagazioz, Feathered-Wyrm of the Pit" in TUC. Can Ciphrang evolve or be "rewritten" in a manner similar to the Hundred? Is a Ciphrang always a Ciphrang? It's curious also that in all our Ciphrang POV's, they're never characterized as having any kind of atemporal viewpoint, in fact quite the opposite -- at least one of them from TTT literally recalls the "millions of years" (not exact but a big number) that it has been in the Outside.
Weird stuff as usual.