Apple or Windows? What´s better when you working with After Effects?

Hi guys,
I´m working on a Magazin Promotion, but I can´t render the video. The Program always crashes after some time. At the moment I´m working with a Fujitsu (Windows). Is it better to work with an Apple? What are your experiences?

Or do you have other tips to render the video?
to render the video in After Effects takes about 10 hours and that´s to long.
How can I shorten the time?

Thanks for your help.
Sarah