I use the commuter. I tried the defender, but the case was too rubbery to get in and out of my pocket. I am on my 5th outer shell for the commuter. When it drops the only part that cracks is the lower right... It does its job protecting the phone though. If I didn't have the case I am guessing I would be on about my 9th new iPhone. The outer case cracking is acceptable to me. I might try one of their new life proof or total cases whatever they are called as they are a bit thinner and can still get them out of my pocket.
The case and slipcover are great! However, the clear screen protector is useless. Hard to apply, and impossible to get rid of the bubbles. There was also a label glued on that wouldn't peel off cleanly, you had to use solvent to remove the residue. I threw the protector away.
This is a great case that protects my phone well. After a while, the soft inner part gets a little stretched out and doesn't fit within the hard part as well so I don't recommend removing the case often. I drop my phone all the time and it is always fine in this case! One of the times I dropped my phone, I cracked the outer case and it was super easy to get a new one by filling out a form online and submitting pics. I am overall happy with this case and with otterbox!
Pros: High quality, Durable, pretty!
Cons: inside rubber gets stretched out after a while
The newly designed shell for the 5S provides better protection and also addresses some weakness issues around the charging port that I encountered with the 4S cover.