Yeah, I'd say Raphael isn't worth the investment personally.
As for Leonie, guys, she only really talks about Jeralt too much in her Monastery lines and Byleth supports. Otherwise, not so much. I don't love her, but I will push back against exaggerations.
As for Felix, he may be an asshole, but he's an asshole who's 85-90% right, just at very immature. It's why I like his supports with Seteth, because Seteth helps him accept that other people have different opinions, and Annette, because he is quite nice and ends up like a blushing schoolboy, which is hilarious.