I would take option 2.
All 3 options are risky, and I don't think that one is necessarily superior over the other, but in terms of payoff, I think option 2 has the most longevity. However, you'd need a generational talent to pull it off. In my mind, here are some examples of each option:
1 - Celtics (cash in on KG & RA), Nets (cash in on KG and PP), Knicks (cash in on Stat and Melo)
2 - Lakers (Kobe era post Shaq), Mavs (Dirk era), Spurs (Duncan era post Robinson), Bulls (current), Cavs (Lebron era), Nuggets (Melo era), Wolves (KG era)
3 - Heat (current) Thunder (current), Jazz (current), Pacers (current), sixers (current), magic (current), Wolves (current)