The difference between keyboard friendliness on OSX and Windows has always been fascinating to me. On OSX, even being able to tab between buttons in a modal dialogue is off-by-default. Opening folders in the Finder is cmd+O instead of just enter. I still have no idea to this day how to access the menu bar from the keyboard.

Meanwhile on Windows, I spend 99% of my time on the keyboard, since both Explorer, Visual Studio, and all the other apps I use couldn't possibly be friendlier to shortcut keys. The consistency gets better with every release as well.