Things that are easier on Linux

Things that are easier on Linux than on Mac or Windows

20 000 applications and more can be installed through the Software Manager or the package management system
Updates can be done when you want them, on your schedule
You can still use your computer when updates are occurring
Updates cover almost all the programs you have installed, there's no need to upgrade different programs at random different times
Updates include security fixes and program improvements
Updates are smaller than on Windows
No anti-virus necessary, and no worries if it's updated or configured properly or working correctly
Spyware or malware removal not necessary
Multiple desktops
Support forums where people know what they're talking about
Filename extensions are not hidden by default, and files are not executable by default, improving security by a lot
Generally Linux is a lot safer (more secure)
Linux runs on older and cheaper computers than Windows or Mac OS X
Linux is usually free