Both are terribly successful and have serious eff you money.
The big differences as I see it are:
When looking at simple business metric standpoint Bill Gates was more successful. He built a company that is the market leader in almost all areas it decides to fight in and, in turn, Gates became the richest man in the world. In the process Gates and his company became hated, literally hated, by a large group of people. Moreover, the products his company creates never wows the average Joe and the company's brand is old and boring.
Jobs, on the other hand, was very successful at creating a brand and selling a bunch of hardware. In the process he became a cult leader (of sorts) and most of his products are considered revolutionary and fawned over by the average Joe and the technology press.
So would your rather have the most successful business on the block but not exactly liked or have a very successful company and be passionately loved by a group of people?