I like Karlach. I have a thing for genuinely nice people and she seems to be. She's a ruffian with a heart of gold, gotta love it. Gale is interesting, I like intellectual types. Wyll is a little boring, he gives me Liam from Mass Effect Andromeda vibes. His backstory is interesting but conversations with him are dull. I like them all in different ways tbh, they're well written.
The best is Scratch though. Good boy for the win.