I hate to say it, but the Lakers just look like a cut above the Celtics. They have one of the top 3 big men in the league and one of the top 2 guards in the league (they both might be the best). Their supporting cast is solid if not great. They can play up-tempo, they can play grind it out. They can score inside and they can score outside.
Through three games, we've seen two games where the Celtics just couldn't quite keep up, and one game where some ridiculously hot outside shooting kept them in it and they got some timely stops. I'm sitting here thinking that Games 1 and 3 are probably closer to the norm.
Unlike the Lakers, the Celtics can't win unless the outside shots are falling and / or the refs are letting them play super physical on both ends of the floor. Even if they're able to do that, they still have to hope two of their four best players have really amazing games because all four of them aren't going to show up. They were able to succeed that way against the Cavs and the Magic - two very good teams - but it won't work against the Lakers, who look like a
great team.
Looks like Lakers in 6 to me. Unless the Celtics effect a stunning turnaround and suddenly start playing better than they did even in Game 2, they'll probably manage to pull out another win at home and that's it.

I hope I'm wrong.