Each has its own merits, but they all have made contributions to mankind.
These are two people, and they are also competitors.
Edison mainly promoted direct current, while Tesla mainly promoted alternating current.
The advantages of alternating current are self-evident, but Edison took advantage and suppressed Tesla. Tesla was forced to give up the patent rights of alternating current, which truly benefited the public.
One DC and one AC
One is a capitalist doing inventions part-time, and the other is a purely single-minded, nerdy inventor.
Edison was a businessman: he invented the phonograph, the practical incandescent light bulb, and contributed to movies, cameras, projectors, telephones, telegraphs, and a host of other things. The largest-capacity generator at the time was made and the first large-scale power plant was built. Many of the remaining patents were filed in his name by some of his subordinates.
Tesla is passionate about creating: the father of alternating current, the father of radio, the father of free energy, the father of radar, the father of the Internet, the father of X-ray photography, the father of solar energy, the father of dead rays, The father of space exploration, the father of artificial lightning, the father of artificial weather, the father of consciousness development, the father of the gravity wall