I loved the design of the original Mac OS. It was a breath of fresh air in comparison with the ascetic world of MS DOS. I loved Windows, too, both in its 16-bit incarnation and as the 32-bit NT. It gave you the power unseen before. The design of Windows NT, as it was originally conceived, seemed amazing to me. And I loved Linux, too - for being a UNIX, for its openness, and for its virtually immediate availability at no charge...
As years passed, both Mac OS and Windows have been gradually losing their appeal, getting more and more bloated, resource-hungry, sometimes plain crazy. Finally, they deteriorated to the point of a marginal usefulness to me. Linux, on the other hand, has been improving at an astounding pace. Today, it is friendly. It is snappy. And it does not spy on you. There are many variants to choose from. You can get it up and running in no time. It is there to suit your computing needs.
Today, there is nothing better.