Doctor. By a mile!
Lawyers suck as human beings most of the time. I became real close to going to Law School, but after working for a top litigator in San Diego during my Senior Year at UCSD, I realized how shitty the profession is and bowed out. The funny part is, my first real job out of college that did not totally suck was representing doctors and hospital groups on unpaid Medical Liens that had settled, but the lawyers kept the money. It was a dog fight with many lawyers, but after they got to know me they paid up quickly on future cases, because they didn't want to go through the threat of being disbarred through California Civil Code which allowed me to have their Trust Accounts audited to discover the disposition of my client's funds. They wanted no part of that and it's what the statute allowed. Now the California State Bar has been defanged and the same lawyers would likely laugh at me and keep the medical providers money.
I then worked for an actual Law Firm as the General Manager. I had multiple lawyers, paralegals, legal processors, collectors, etc. working for me by the age of 26. I did it for years until I was totally miserable and my hot wife told me to quit. I was offered 1/3 of the take from the lead lawyer, but turned it down to go into technology and eventually technology / energy. I'm far more happy and don't have to manage a legion of assholes.