When I bought my first Canon Eos 100 in '94 Nikon was very much the snooty 'professional' make, in fact they pretty much only did AF as a sop to amateurs. Real pro shooters were manual all the way and the best cameras had the ability to keep on working mechanically even if the battery died. AF was considered a toy by the Nikon people, and it was Minolta Dynax that elevated AF beyond a novelty feature to something that Canon ran with and made their own.
The Eos system has been a phenomenal success, and in many ways Canon have seemed to predict the future - the digital revolution has left most if not all of the other manufacturers playing catch up.
One example is the EX flash system - this was developed BEFORE digital was expected to do so well, with the knowledge that flash metering could not be done off a sensor in the way that EZ flashes metered off the film.
It might be of interest to some people to know that the Eos system is NOT Canon's first AF lens system. In 1981 Canon released the rather bulky FD 35-75mm f/4 AF lens, which had in-built AF and works with all FD mount cameras. It autofocused by Solid State Triangulation. In 1985 Canon released the first SLR autofocus camera, the T80. It used an FD mount but had just 3 AF lenses, the AC 50mm f/1.8 , AC 35-70mm f/3.5-4.5 and AC 75-200mm f/4.5. The AF was by detecting contrast ( in focus = higher contrast) rather than phase detection used by Eos cameras. The T80 was not successful and was discontinued in 1986.
Canon took a huge gamble by abandoning the FD mount and developing the EF electronic focus mount from the ground up, allowing the development of individual focus motors for each lens, while other manufacturers were trying to maintain backward compatibility with previous lenses as they developed their own AF systems.
It took Canon a fair while to crack the pro market, as it took a while for pro shooters to take to AF, and once digital arrived the eos system has not looked back.
Hope you don't mind the historical stuff, I quite enjoy seeing how things have changed over the last 30 years or so - just look as some old National Geographics, they had gorgeous camera advertisements in them that really bring back a nostalgic feel.