My opinion on the Lone Wolf talent is that it IS viable still, but i would not recommend it to a min-maxer. Losing that second companion is too much of a loss. Lone Wolf basically does half the damage, has way less ability points to spend overall and is capable of doing less on the battlefield than what you could do with two characters. I would honestly only recommend Lone Wolf in case of a min-maxer for certain types of builds that need the extra ability points and/or HP on one character and won't care about losing the damage or is able to make up for it.
Can't really comment on overpowered builds as im still trying stuff too. All i know is that most info on the internet is outdated and almost nobody really has said anything about EE version.
