Poison spark: pathfinder vs. CI occultist

I am considering these two for later respec either from toxic rain pathfinder or caustic arrow occultist, respectively.

Pathfinder: https://pobb.in/Daw8BK5yr0_1 (maxroll) Occultist: https://pobb.in/dcMrtL96

I am quite familiar with the playstyle after playing life version of occultist so mostly wondering about the defensive mechanics of these two since I might not be able to exactly follow the pobs.

Occultist - I don't believe I will be able to farm Mageblood. If that's case, is the occultist still viable? Some builds use large thread of hope to get Glancing Blows. Not exactly sure how they cap block in this pob. Also no suppression but we have high max res and es recoup.

Pathfinder - I am a bit concerned when it comes to capping resistance through flask and relying on its uptime plus lack of armor (no determination). What I would prefer to do is to cap res through the gear instead and replace helmet with Devouring Diadem to fit Determination (or other aura if armor is not viable such as petrified blood). Could I then replace the chest with something else such as Skin of Lords (Loyal) which together with Empower would add few extra gem levels to spark? Nimis would be a great addition as well to spread spark.

Is the damage comparable for these two or one beats the other by a lot? I need to say that I am very into profane bloom and pathfinder is lacking explosions. However, I keep playing occultist league by league and might be missing great stuff that comes with pathfinder.

No build guide that I know of for occultist which leave some room for potential error on my end so I would apreciate any feedback.