[HTC One S] ohmyggg:
Hey all, thought I'd provide some comparison pictures for anyone who is not sure whether to pick up the D3O case ($24.99 from T-Mobile) or the Diztronic Matte Back Transluscent Black case ($9.90 from Amazon).

I originally bought the D3O because I was desperate for some protection. I had already dropped my phone on my apartment's concrete floor (luckily, not a single scratch or dent) and that made me nervous every time I pulled it out of my pocket. The D3O provides excellent protection but adds considerable bulk around the outside of the phone. Also, something bothered me about the thickness of the outer border relative to the size of the silver strip on the top of the phone (this would only be a problem for the T-Mobile gradient blue since the top is silver). Anyway, the thickness of the border and silver strip are about the same size and I thought it made the phone look weird. The bulkiness also made the phone a little more difficult to use one-handed because even though I have large hands (I'm 6'2"), it was much harder to reach the opposite/top corner of the phone using my thumb.

I then came across the Diztronic case online and saw someone post a picture of it here on XDA. It seemed to get good reviews and looked good, so I ordered that from Amazon. I feel like the phone has a much better look with this case as it retains its natural sleekness. The case doesn't add much bulk at all, yet it does provide some protection for the sides, top, and bottom. It's enough protection to prevent the phone from getting scratched up by carelessly placing the phone down onto surfaces, but it's not enough protection to make me feel completely safe about dropping the phone 4 or 5 feet onto concrete (although I do think the screen would be protected if it dropped flat onto a straight surface since the case does create a lip of protection for the screen - the case also came with a screen protector, which I do not care to use).

D3O Pros

Much more protection (thickness and softness of the rubber)

*Slightly* more grip than Diztronic

Diztronic Pros

Much better looking (opinion)

Easier to use one-handed

Much cheaper

Note, both cases are great looking in the back. The D3O has a matte finish (front & back) and that gives it almost a charcoal grey look. The Diztronic is a dark matte grey color and *slightly* translucent. Both of them look great with the blue "pop" from the rear camera.

The front of the D3O is all matte and has a thick border (makes it ugly with the grey strip showing through up top - see my commentary from above). The front of the Diztronic is grey, thin, and more of a reflective plastic or rubber. Again, it's slightly transluscent, and this combination (of size, color, and reflectivity) complements the front of the phone really well (IMO).

Some other notable features before I submit:

The D3O has covers for the power button and volume rocker (cut-outs for everything else). The coverings are rather stiff and this makes it difficult to activate the buttons.

The Diztronic has a cover for the volume rocker and an opening for the power button. The opening for the power button makes it easy to "locate" the power button with your finger, which in turn, makes it easy to activate. The covering on the volume rocker is not nearly as stiff as the D3O.

Both cases seem EXTREMELY well made and have almost PERFECT cut-outs, but I do prefer the larger cut-out for the microphone on the Diztronic.

In conclusion, I prefer the Diztronic. Going to try to return my D3O (although I just noticed my receipt says that accessories can't be returned, so I might be stuck with both).

Hope my [anal]ysis was helpful.