Oddly enough, as a youngster, I did not pay attention to the company names, I just thought all SAK's were made by the same company, even though I had examples from both brands. Back then I probably didn't care.
I have found that I just like the Victorinox better. I like the smooth action, overall appearance, and the fact I carried a Vic model as my sole knife for a decade at one point, it's proved to me I prefer them. Also, for a manufacturer that makes a total of about 134,000 knives A DAY, their quality control is amazingly consistent, perhaps even making Victorinox's QC the best of all knife companies in the world.
Jim