Hey there,
First of all I am sure that both are great and can produce great results BUT I do not have the time to learn and match components to make a beast of a PC so in my case would a Mac be better?
Also which one works with pro tools best?

If I choose a Mac is there a big difference between an iMac and a mini? There is in price. I have to buy a monitor and keyboard(with protools shortcuts if possible) since I know that hooking it up to an HDTV is bad. Thanks in advance.