A friend of mine owns a business and has one Mac and four PC's (cost, I imagine) and he networks them together and also with his home computers (which are PC's). As for one being better than the other, a program is written by the software company so it's going to work the same on both platforms. There are pros and cons to both, and whatever works for one may not work for another. One of the biggest pet peeves by Mac users is the old "one-button" mouse. Now they have a "PC-style" mouse!
One day my friend was giving me the "no Mac viruses" argument and I went on line and searched. In five minutes I found a Mac virus and the removal tool, and he just happened to have the virus on his Mac, and since he networked it spread to his PC's as well. It was a pain to remove, but he finally removed it. There are more PC viruses, sure....probably written by angry Mac users!
The one thing that I find rather comical is the latest Mac ad campaign where they spend their time trashing the PC. Why resort to that type of "political-type" mudslinging?? They should adopt the philosophy that Ray Kroc, founder of McDonald's, put into policy: "Never mention the competition for any reason". Makes sense....if your product is as good as you claim, why would you need to make the competition look bad by comparison?