For me :
- Azure Moon for all paralogue , Crest relic, Sacred weapon and their battaillons.
- Silver Snow for paired ending (28 character, 14 men (Byleth count) and 14 women). Can make 14 paired ending.
1st run (CF) : Dorothea
2nd run (AM) : Annette
3rd run (VW) : Hilda
4th to 6th run (SS,AM,SS) : Dorothea
7th run (VW) : Flayn
8th to 10th (SS) : Dorothea