Another major difference -
Windows 10 includes a ton of changes nobody wants in exchange for a small number of security improvements and a few nifty things for admins (if you're using the Enterprise Edition, which is the only one not that's completely appalling). Sierra so far has no such downsides, and so far has been pretty nice (Tabs! Tabs everywhere!). Being able to copy/paste from a cell phone and unlock with an Apple Watch seem like minor features, but nicely simplify common tasks.
Biting the hand that feeds IT
