Tough question, I don't really have any idea which teams are hated tbh
In terms of recent performance, you would probably look at the Celtics, have languished near the bottom for many years, but last season went out and bought some big guns in which got them the NBA title last season. Also are the most successful side in NBA history
If I was looking for others, in terms of hate I think the Dallas Mavericks would be up there, always spending massive money on big names, have a high profile owner who is hated, but for all this they have had no success at all
Lakers are a traditionally strong side, who have been rebuilding their roster to be runner up last season
From a purely playing point of view, you could look at the San Antonio Spurs as a great parallel to us, have won 4 titles in recent seasons, and play a great team game based around 1-2 superstars with everyone else filling their roles