Currently I am using a otterbox commuter case. I like case except for the hard plastic cover is a little slippery. I am switching to an SPG Ultra Thin case because want to be able to hold phone in one hand. The otterbox case adds just enough bulk to make using the S3 in one haned tricky to use in one hand.
SPG does not add much bulk at all to phone and has matte finish which phone less slippery to hold. I am careful with my phones so I am not worried about dropping the phone.
UPDATE
I got my SPG Ultra Thin Air Case for my S3 ands it's great. I am able to hold S3 now more easily and don't worry about the slippery stock back. SPG Case has a slight rubber coating that gives the S3 enough grip to stay in the hands. The fit of case is not great but adequate.
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