Hey guys, big fan of the original game here and just about to start with the enhanced edition. Seems like such a polished game now! Big thumbs up for Larian!
I'm a big fan of finding synergies, min-maxing and optimizing builds etc. It usually means I spend more time reading the wiki and crunching numbers (which for me is fun!) than actually playing the game.

With so much new content though, and not having played in a long time, I'd appreciate some pointers of the new talents and skills.
1) Whats your experience with the strongest builds you've made? What makes it so good?
2) I usually preferred the lone wolf talent. Is it still a viable option?
3) What do you consider "overpowered" skills at the moment?
(In the original game I never played with the cheesy overpowered though, like the leech and comeback kid thing. But it's still good to know what's out there)
4) Which playstyle is weakest in your opinion?