Well Microsoft has confirmed that Windows 10 GUI idea came from Ubuntu. The multimedia side is where linux has its cons, but, that is getting in shape already.
Linux has Blender and there are open standards on the way to create a unique multimedia solution that is compatible with every distro and GUI. I have had those problems but i am not a multimedia developer i am mainly a mainstream linux user so i see no problems in that area.
I want very secure policies and that is where linux is strong. I don't have to pay royalties to upgrade my distro also.
RE: Windows, Mac or Linux user?