My method of rooting for teams goes like this:
First and foremost, I am a Rocket fan, and root for them every year as such to win the championship. Outside of them, I root for the Mavs, as I live in Dallas and they are my second favorite team. Now, when both of them are eliminated (traditionally Houston much sooner than Dallas

), then I simply root for whichever team won the last championship. To me, it means a lot more if the team I root for knocks off the reigning champ who has won for many years consecutively.
So, as a result of this credo, I am rooting for the Lakers this season. It is helpful, however, that I really do not like the Nets. I think Jason Kidd's impact on that team is GREATLY overexaggerated and Kenyon Martin is a flat out thug, and I hate cheering for thugs to win anything.
So......Go Lakers!