Didn't the Raptors just win an NBA Championship with just one allar? Why didn't the 76ers beat them? The Bucks have two all-stars, yet they lost to the Raptors too. According to most of this board, that is impossible.
A lot of the pro-Lakers posters act like every player can be ranked from 1 to whatever and if a team doesn't have 2 in the Top 10, then forget about winning a championship. There is a lot of evidence against that assessment. Force ranking the entire NBA is bound to be wildly inaccurate. I also think a lot of the players considered "superstars" reached that status as a result of significant self-promotion. Kyrie and AD are two that fall into this category.
Good teams win and some are star driven and some are ensembles, and there is no simple formula. The Raptors were just a really good team with complementary pieces that was a tough matchup for everyone they faced. I think the Pistons were as good a 2 man team as any in the NBA, but the rest of the team kind of sucked and they were an easy first round exit.
The Lakers are a mediocre team at best. There aren't enough ballhandlers, rebounders, or shooters. AD and LeBron will break down during the season because they will play too many minutes, and even if they make the playoffs, they are going to struggle. A team needs at least an 8 man rotation to make it through the playoffs, and the Lakers' 8 man rotation will not be good enough.