I have no idea about Mac, but I will look into it if I am really forced to use either windows 8 or mac. If I am allowed to go windows 7 then that wins, windows 10 has not sold me yet so will have to look into both.
I used windows 8(both in a virual machine and on my laptop) and I absolutely hate it. It is so fricking slow even horse shit is faster and then I am not even talking about the other stuff I hate about it. So I will go with windows 10 and pray that its better.