Parma again, with Intellego and Aegis

Agree with this.

I actually wanted to talk about this, since I noticed this while researching for my "Scrying Mirrors" topic.

"Haunt of the Living Ghost" and "Convening the Council" (HP p44) seldom work if the magus needs to penetrate.
The later spell states that the species generated by the image of the magus aren't magical, and thus aren't resisted.

OTOH, Palm of Hearing/Seeing (TtA p80) states that both spells must penetrate to hear/see beings with MR.
As far as I can tell, they fall into your third category: unless the target of the spell as MR, they should not be resisted, allowing you, for exemple, to target a mirror in a council chamber and see/hear from there, without having to penetrate.