The best case out here is the Spigen one, see above. Its slim, stylish, protective and super easy to remove and install. And by the way this is *critical* as the case must be removed daily to clean under it. Any dust caught between the case and watch will result in scraping the screen or finish.Thanks for the responses!
I'm kinda leaning more towards these cases to see how well it works vs using a screen protector due to how much easier it is to install.
I was looking at the Rhinoshield one but it looks like it adds so much bulk. (As an aside, their email mentions their Black Friday deal will start tomorrow).