I have found that Apple's SS link did scratch easily. I wore it for about two days, and already noticed scratches at the clasps. I understand that SS does scratch, but at $450, it did matter a lot more.
Since I have used both, the best decision for me was to return Apple's link and keep my 3rd party band. With the money I saved, I was able to try out order other 3rd part bands.
Thanks for posting. That does seem to be a lot of scratching on the Apple SS.
I like the look of the monowear better. But the clasp on the Apple seems more secure. Did you have a preference on the claps between the two? And does the apple SS feel heavier?