I just bought the Moko "Full Body Rugged Holster Cover with Swivel Belt Clip" via Amazon, and it's great - perfect for me. Not quite an Otterbox (screen's not covered), but excellent protection and not too heavy/bulky. Cheap, too!
I searched for my 930(Icon) a well made case. I could recommend Pure gear Dualtek armor. That thing feels like it would survive drop from a 5m . So far i had 2 sudden drops with no damage to the phone. I believe that is thanks to the case.
Not sure what the best case it. I have the Mozo flip cover. Looks great and works well with wireless charging. Having it flip open from the bottom is kind of a pain. Pretty obvious now that I have it, but wasn't thinking about this when I bought it. Once that flips open from the side would be easier to use, imo. The Moko that does open from the side has a strap to close which I don't like, and it doesn't support charging. So I opted for the one that does support charging.
Very nice case that looks and feels great. It replaces the back cover. Shame about it hinging on the bottom rather than the side. I suspect I'll get used to it.