I grew up a Lakers and Dallas fan ever since I was little but I don't like those teams now. I currently don't have a favorite team however I do want to see the Heat in the finals. And you?
Lakers.
This is probably going to be an odd thing to hear but I picked it up after my mom ( I say odd because you'd probably imagine I would say my father/cousins or whatever but not mom ). She was a huge Basketball fan growing up and was watching the dawn of MJ, the rise of Kobe/Shaq Lakers, the downfall of the Lakers, the rise of Lakers again and etc...
I wasn't able to watch the Lakers' three-peat because I was barely born by then. But my mom always used to tell me the stories about it and at the time VHS and etc... recordings of the game.
I started to watch normally around Heat's first title I think? and was a somewhat casual watcher from then on.
So that would be my go to team that I root for, even tho I don't like recent developments with the team, man Pelinka did a fantastic job in the office and that allowed us to clutch the Playoffs and now we are on our way to Conference Finals holy shit...
Aside from that I really liked GSW and Cavs rivalry. GSW rise to power ( pre KD ) was a good story as well as LBJ's homecoming and the best title win in my opinion in 2016.