- Quick hide-all-windows to copy something from your desktop to your clipboard, then bring everything back
- Alt-tab, especially when it comes to apps with multiple windows, and windows in different states, such as minimized
- A modern/fully-featured default web browser without a locked down extension ecosystem. - A start menu for seeing all your applications
- A taskbar with application grouping
- File Explorer is much more full-featured than Finder
- Better settings, especially when it comes to relevant settings being in one place
- The concept of uninstalling an application vs just deleting the application
- In some cases, an actual function key row
That said, I've used Windows for almost 15 years now, and I think many of its choices are second nature to me. Many of my friends are masters of switching windows with Expose, which I absolutely despise. And I still use Windows for work, but use Mac in personal usage. I usually end up frustrated at things that work on Windows but don't on MacOS, but rarely vice versa.