The Mac is the platform of choice for graphics, motion video,
and WWW design. In many cases it provides the quickest and easiest solution
available, taking into account user interface, getting on a network or connecting via a modem, upgrading, software availability (just because there's more software for the PC doesn't make software on a PC better), and user experience. For most people getting into very basic image editing and graphics though, either the Mac
or PC can be a good choice.
As for more advanced graphics users, image editors, desktop publishers,
and multimedia developers, the Mac reigns king in many areas and still seems to be the platform of choice, although many PC companies would like you to believe otherwise.
There are many little things that make the Mac attractive that are hard to explain unless you've used
a Mac and a PC side by side. Several things include the ability to have a large virtual desktop with multiple monitors (not available on a Windows system), the ability to change color-depth and resolution on the fly (when changing color-depth on a Windows 95 system you must re-boot), disappearing cursors (that get out of your way) when entering text into a text box, etc. I wish I could list them all here, but I would have to devote an entire site to that endeavor -- of which I have little inclination and less time.
The bottom line is - don't let anyone tell you that PC's are "superior" to Macs. It just isn't so - no matter what someone says about market share. Market share is ALL about marketing and not about product quality.
Only YOU can decide what is best for YOU, as long as you have enough unbiased facts. If you are looking for a computer that will help in graphics and web page design, please do your homework and get as many facts as possible.
Preferences aside, most of the things talked about here can be done more or less similarly on both platforms.