Lakers vs Nets finals are not gonna happen anymore, the Lakers are a complete mess now, that wouldn't change in the long run. It's only between the Warriors and the Suns that will advance in the NBA Finals but I see the Warriors advancing because Draymond wants to prove that they can be in the Finals again even without KD.
Technically, the odds for Lakers vs Nets in the Finals facing each others are somehow questionable referring to the current situation now. Not just in Western Conference, but I'm not even considering Nets as the sure win for the Eastern Conference.
Although inconsistent, Lakers seems showing dominance therefore, we can assume that they are not tally doomed. Western Conference is full of tough teams. Even Lakers are showing good and let's say they are consistent, we can't still be sure what teams will face in the NBA Finals.
Lakers are not going to the finals, period.
LeBron is having one of his best seasons so far in terms of production and yet they are still struggling to get above .500.
The Nets have a real chance of winning the East and perhaps the whole championship - they were so close to beating the Bucks last year. But it will depend on the Kyrie situation as well as how healthy KD stays.