Angels with Holy Attacks
Saef: Adding holy magic onto machina stuff is pretty much his thing, but is ALSO a holy type caster.
Zak: Uses both regular and holy fire.
Flos: Despite being a Fallen Angel has a ton of angelic type attacks, because they're almost all melee amplifications of his angelic weapon.
Sapphire: ONLY has holy element attacks.
Miyu: Happiversed, but her thing was like Saef, adding holy element onto machina stuff.
Omega: Truth and Justice fire holy elemental attacks.
Dorafraki: Mentions that her power has holy origins, but all her attacks are actually lightning and storm based. Still, we'll count it.
Iona: Does she really count as an angel? Still, she's a master of all holy magic.

Angels without Holy Attacks
Juno: Does she really count as an angel? Still, sword is spacial type, not holy, and all her attacks so far shown are gravity type, not holy.
Zeruel: Only has one actual potentially holy type attack (eye beams) and it seems to just be a regular explosion.
Eve: The Lance might be holy, but only says it has fire. And none of her fire moves mention any holy element. And her backstory has her biologically similar to a demon anyway.
Abigail: NPC now, but her elemental attacks are dreams, not holy.
Ananta: The Ofuda MIGHT count, but they're really not an attack. No actual mention of holy type attacks or that the Rakshasa's blade have holy element. Still, happiversed, so doesn't count.

???
Deva: It is unknown whether Deva's chair type attacks count as holy.

7:4 Angels having holy attacks, and I'm willing to bet Deva's are holy for 8:4.

Still, comparitively, 10:3 vs 8:4 for taking the more generous assumption for both, the Machina have a higher ratio of people with holy attacks than the Angels.