I’d say Ubisoft is fine. You can stop it with them. Activision is shady lately, but I would still buy something if I’m interested. Konami I don’t know I never buy anything from them regardless, since I’m hardly ever interested enough in what they make.
EA remains evil though, I’d keep it up with them. In fact personally I haven’t even touched anything with an EA logo on it since 2003 (either SimCity 4’s expansion pack or Return of the King).