I'm sorry, I don't think coatings look quite as good as wax. My opinion only. I've done some 50/50 testing in my house with OC on black painted ceramic plates and compared it to Dodo's Blue Velvet Pro. The BVP provided a nicer, "richer" looking surface, period.
Believe it or not, BVP also sheeted and beaded water better than OC. However, this on FRESH wax on paint inside my house. Wax quickly degrades outside, and needs frequent re-application to keep all those "just waxed" properties.
If your looking for good and easy maintenance go with a coating. If your looking for the BEST look, go with a top wax. Wax does have a lot of drawbacks, and dust collection is one of them. But, if your looking for the best possible look, I would stick with a good wax.
If you "wax over" a coating, you loosing the benefits of the coating. It will collect the same dust.