This has been an interesting article on the Apple Keyboard vs the PC Keyboard. I guess there are quite a number of differences that you have outlined.
In my opinion I have always thought of the Apple keyboard, as a more sleek, professional looking keyboard. They generally seem to look and feel nicer, with light white keys. However, I have also had really bad Apple keyboards, and nice sleek PC keyboards so I guess it is a bit hard to generalize like that.
Personally I have preferred the Apple keyboard, just because that is what I am used to. At work they only have PCs so I need to use their keyboards. I find them a bit clunky and am not used to the keyboard shortcuts.
So all in all I think it is just a matter of opinion rather than what is better or not.
Anyway thanks again for the article and also this website. I enjoy reading the latest information on this website. Cheers.