I have one simple question. Who does the best hairline with the thickest most natrual look from what everyone has seen.

I think this is impossible to answer, because what you think is good and what I think is good might be different.

I do believe that the number of excellent doctors doing hair transplants is very small, however it is a matter of opinion to say that someone is actually the "best".

There are far more bad doctors doing hair transplants than there are good ones, so be careful.