Personally, I don't mind the evil companion. I Actually like all of them. I just want more. I don't get all the criticism toward them, except the lack of meaningful discussion / interaction. I Think all of them have something unique and the voice, the acting, the gesture are all very well done. I would just like more banter during travel, and them to actually get out of their way to give their opinion during quest other than their own. Or them to argue randomly while travelling. That kind of little thing. I mean, I don't think Larian has to do much to make the companion great and rememberable.
And tbh you people should really be more level headed about what character you like or you don't like. Its a roleplaying game. These people are not your BFF . They aren't your friend at all, actually. Its a story where you are surrounded by different, dangerous, and often ambiguous characters. Not a saturday party where you meet friends. Anyways, we ll probably get to meet your typical ''loyal good straight neverlying always kind compassionate and merciful handsome paladin'' boy and your usual ''sexy innocent mommy girly wise secretive mischievous'' girl later in the game. So I think the work of Larian on unusual character should be appreciated, and people should suggest how to make the current companions better instead of wiping them. Also rooting for more companions , so we get more choices.
If it's what it's takes to save the world, then the world doesn't deserves to be saved - Geralt