I like using Windows more than OSX. Using Macs almost exclusively for the first 10 years of serious computing, then using the two, side by side for the next 10 years, I'm going with my gut. Mind you I have access to both operating systems, so I haven't ignored one or the other while it has matured...
Windows feels more left-brained. It's not about injecting the windows experience in your workflow as you accomplish a task; it's just about completing a task.
OSX pushes its beauty toward you whenever you use it. OSX and most mac applications say to me: we're highly conscious that we're mediating your computing experience, we're awesome at what we do, but we're still here.
Now I'm someone who LOVES process, but for whatever reason it's about process that I create. And I fully acknowledge that the OSX refined-process-as-art inspires the brightest minds to do their best work. But I don't have one of those minds.