Lebron is playing at an extremely high level, the game seems effortless to him at times and when you watch him move and operate there are stretches when absolutely nothing can really slow him down, bother him or throw him off. Just makes it that much more annoying that he still gets phantom calls and is generally allowed whatever leeway he wants when approaching the basket, or that he gets such leeway with his own fouling. But, he's still the 'best' in the league all around. Yeah, you can talk about how Kobe's footwork and complex shot making is superior, I think it is too. You can talk about how Durant's shooting stroke is purer and he has more finesse, I think so too. But a few things here and there that maybe some other players do better doesn't account for the across-the-spectrum dominance Lebron has shown.
Even if you took away the preferential treatment he gets, he'd still be essentially unstoppable in most situations.
At this point, if I had to take away from his game it's that he doesn't really play like a traditional baller in the sense that his game isn't built upon fakes, cross overs, footwork, more fakes, and 'moves'. He's not a player who really has 'moves', but he doesn't really need them, is kind of the point. You can make the argument that he plays to the contemporary NBA in that sense. He plays in a way that is most conducive towards being effective in the current state of NBA play, and you can knock him for that a little, but it doesn't make it any less 'good'. Another way of looking at it is that he plays extremely smart. He knows the meta game of the NBA, he grew up with a different NBA than guys like Kobe did, and built his game around that. In fact, part of our frustrations with Kobe at times stem exactly from Kobe's old-school mentality.
It doesn't take much to see how guard-dominant the league has become. Guys like Westbrook, Irving, Rondo, Rose, Wall are the beneficiaries of how the game is officiated these days, "First step" players. Lebron happens to play similarly only in a 6'8/250 frame. I do not think Lebron would be as dominant if he was playing in the era of Shaq, Hakeem, Robinson...etc. But that is all hypothetical. As it stands, in the way the game is played today, he is pinnacle.