I have no regrets from doing LL. It's the best decision I've ever made.
Every doctor you listed is very credible. I would definitely add Dr. Rozbruch to that list. Along with Dr. Paley, he is considered the best in the world at this procedure. I can tell you from personal experience that he very much cares about his patients, and his team is top-notch. He is also the head of orthopedics at arguably the best orthopedic hospital in the world (HSS).
You're on the right track. Do not compromise on Dr. quality, and using the right nail (Precise 2.2 is the best available on the market as of now). I would consult with all of them, and then decide where to do the surgery. In Asia, Dr. Lee is obviously the first choice. In the US, it depends on whether you would be more comfortable on your own or prefer to stay locally, which Drs. Paley and Assayag require. For me, Dr. Rozbruch's approach to PT, his patient demeanor, and the fact that I could go home and be in an environment that was more conducive for me to thrive in sealed the decision.
But really, you can't go wrong with any of those doctors. Have a healthy diet and good Vitamin D and Calcium levels before the surgery, take the recommended supplements and eat lots of protein, and follow the Dr.'s protocols to the letter, and you will have a successful outcome.