And IMHO the Mac is generally easier to use and faster to learn. Many people find it more attractive and, of course, in certain areas (Magazine production and graphics/art for instance)it has been the 'leading' system of choice.
It is certainly possible, and normally, straightforward, to transfer files and also network between PC's and Mac's.
However there are a number of points to bear in mind:
1. Mac's are very much less popular overall and so there is less software and hardware available for them and it tends to be more expensive.
2. Mac's are much less of a 'kit' system than PC's and so getting parts, and repairs done, is much less easy and is, often. much more expensive.
3. Apart from in the niche markets outlined above, the PC is the system of choice. As I said it is, normally, straightforward to share information with PC's, but it does add another layer of complexity and another chance of things 'going wrong'. And of course, as we all know, things only go wrong at the worst time!
Personally I would usually recommend a PC route, rather than a Mac, because the ease of use advantage is, for me, more than outweighed by the increased cost of ownership and the added complexity of transferring information.
You may well feel differently and I would suggest that if you are considering the Mac route you check out software and also replacement parts costs, availability of support and also how happy those receiving your information would be with you using a Mac and whether they would have any problems. Once you have all the information make your choice and enjoy!