I couldn't help myself...I finally broke and just ordered one of these about 5 minutes ago, despite having an Otterbox already.
https://www.lunatik.com/products/taktik-extreme
I'll be curious to see what you think about it. I will be getting one when I get my Iphone in April.
I think otterbox has the best cases and by far the best customer service. They'll replace a broken or faulty case no problem.
I'm testing out their customer service today. My wife and I both have the Commuter on our iPhone 5s (that's plural, not 5S) that we got in December. both of them have a hairline crack around the volume buttons, in fact the crack is almost identical. Her's also cracked/split apart in the little plastic piece under the home key (above the charging port).
She's not too rough on her phone, but it does take some drops. I've never had a case on any of my phones until now, and I've never broken a single one in 13 years.
I was torn between the Lunatik and the new otter box armor. Ultimately I went with the otterbox. I decided if I was going to spend 100+ on a case it needed to be water proof. I love it. It's easy to take on and off and crush proof. The sound quality is IMHO better than my lifeproof for the iphone 4