Some advantages of Macs based on experience
-Integration across all Apple devices (iphone, ipad, mac) is pretty seamless and getting better all the time. So for example, sharing photos across multiple devices is pretty easy within the Apple ecosystem. One of the newer features is the ability to pick up where you left off in your iPhone on your Mac. So if you're on a surfing the web on your phone and want to get a better look on a bigger screen, you can simply open an icon on your Mac and pick up where you left off on your phone by clicking an icon (again, this might or might not come in handy for you).
-Apple's customer support, if needed, is generally pretty well regarded (at least compared to PC makers)
-Macs are super easy to set up to support dual booting OS X and Windows. If you have a need for Windows, you have the option to install it on your Mac, which may or may not be important to you.
-The hardware and software are well integrated which in theory optimizes the user experience. The downside is that if you have a desire down the line to upgrade your Mac by adding more memory or something, it's much harder (or impossible) on a Mac, whereas a PC is generally much easier in this regard.
-PCs almost always come loaded with a bunch of garbage software including generally terrible anti-virus software that can be frustrating out of the box. Macs on the other hand come with software that you're generally going to be happy to use (iMovie, iPhoto, iTunes, etc.) and nothing that'll make you spend an hour "taking out the garbage".
The downside of Macs is the cost. You can generally save yourself a decent amount of $$ by choosing a PC with similar specs.
