My absolute favourite route and marriage is Lisle.💚It's so joyful and sweet.
Another huge fave is Zarad, who was my top dude until I tried Lisle's route (last, very disinterested and expecting nothing from him... haha how the turntables). Corval is my favourite kingdom in general, I think, I love Zarad's conversations with all my PCs, love the Corval PC and her storyline, love the Princess's storyline tied to Corval...