I donāt know what kind of graph would give me the space to explain my reasoning so hereās my list of which Primarchs would like Erda and why (based entirely on my own gut feelings)
Lion ElāJonson: Dislike. Always loyal to Emps and has little reason to question his authority.
Fulgrim: Loves. I donāt have a completely concrete explanation but he is a mommaās boy
Perturabo: Complicated. Erda will definitely praise his architect projects but Perturabo may still hold resentment over being sent to Olympia at all
Jaghatai Khan: Likes. Thinks sheās cool and appreciates her humility.
Leman Russ: Loves. Is also a mommaās boy and projects his love for his late wolf mother onto her.
Konrad Curze: Suspicion leaning on dislike. Mainly blames her for his visions, as she was the one who created him to have future visions.
Sanguinius: Itās hard for me to imagine him disliking her.
Ferrus Manus: Another hard to say, leaning on Indifference. my gut is also telling me it would be funny if he was positive on Erda but solely on the grounds of "Hmm yes, sending us to a planets where we could hone our skills and become stronger, thank you" but my second gut tells me that would be inaccurate considering how difficult life on Medusa was for him.
Angron: Hot take. Not dislike, but understanding. He hates Emps more and agrees with her that he would rather be far away from Emps than serving him. Likewise, values the connections he made on Nuceria despite the way it ended but blames Emps for that.
Roboute Guilliman: 30k, probably neutral. He didnāt have a hard life on Macragge and is generally well-adjusted even while under the Emperorās rule. 40k, heās so happy she scattered him and only wishes he were never re discovered.
Mortarion: Dislike, extremely resentful of how he ended up on Barbarus and how he was treated there.
Magnus the Red: Loves. Spends so much time asking her about ancient Terra. Mommaās boy 2
Horus Lupercal: Hard to say? Iām leaning on respect, but distances himself from her because he was closer to emps growing up
Lorgar Aurelian: Highly regards Erda. Doesnāt see her as a god but rather a vessel for the Emperorās divine will.
Vulkan: Respects and loves. He didnāt grow up with a mother but is happy to have ended up on such a nice planet
Corvus Corax: Another woman respecter. Might not agree with her actions, but likes her grumption
Alpharius Omegon: Considering how they ended up during the Heresy, I think they would respect the game