Both Edison and Tesla have contributed a lot to the human kind. While Edison was responsible for direct current systems, Tesla will probably be remembered as the father of modern electronics. The folks behind Transparency infographic series have posted another awesome piece comparing the work of these two legends.
Tesla and Edison did not like each other and disagreed in a number of areas. Tesla also had his disagreements with other modern physicists. The good news is we are still reaping the benefits of the work of these two geniuses.
[see this infographic in full @ source]