As a lawyer that has worked in an organization with both mac and pc - I will always prefer PC. Mac's workshare is god awful, and word itself is just more friendly to legal work on PC.
Matter of preference, I suppose.
This is very bad advice and should not be followed. You would be starting off a career on the absolute wrong foot if you do this. The employer will obviously be aware that you knew when you were getting married and that you wanted this time off. If you don't tell them, that shows very poor judgment. It's likely that most employers are not going to allow for a month off shortly after starting. The advice to mention this during the interview process is good, and if an employer is interested in hiring you, they may be willing to hold the spot until you get back.