Personally I like most of the companions, and I do not get the Wyll hate. I think his problem is that he is a bit underwritten (I preferred his EA version and would have really liked to see a zero to hero story with him), but he is a delight together with Karlach and one of my go to companions for good runs. I can understand if people find him boring, though.
I made a threat about more content for Wyll, especially in act 3, but I'm afraid, it will get buried among all the romance threads.
Isn't Halsin's the only romance thread here?
I've never seen anyone outright hate Wyll. My problem with him is that I like the idea, but not the implementation. He gets nothing to do so it feels like he just stands at his tent and preaches about being a hero. I do appreciate that he has enough of a mind of his own to leave if you raid the grove though.
Halsin, though... I recruited Minthara recently and she is just
so much better.