Personal opinion on desire cases, I got a leather 'pull out case'. Theory being when its in my hands I want to use it easily, and I'm unlikely to drop it whilst texting etc, and its protected when in my pocked by padded leather and thick edges for drops.
Friend got a silicone case with a screen protector. Yes its protected whilst you're holding it, but it looks shit, feels shit, can't get it out of your pocket easily and the screen protector is all scratched and rubbish in the sun. The phone is slightly scratched underneath too, which tells me something. Whereas mine is in mint condition and I've had it longer.
If your a clumsy fool then get the silicone stuff, and at the same time wrap it in bubblewrap, but if you can trust yourself then get a proper case which is protected when you carry it, and free and easy to use when you use it.
(if the above sounds harsh, its meant to be in jest!)