I am a big fan of the i4 design and feel when it is naked.  However, just came too close to dropping it several times.  I looked at several cases, including a Belkin bumper case with clear back I had laying around.  I decided to go with the Otterbox Defender.  And YES, I had worries about size, feel, etc...  But honestly, after installing and using for a few days, it is very appealing, not to mention the protection is second to none.  The holster is somewhat bulky but overall I am pleased with the case.  I have larger hands so this case is not for everyone, but it works for me.