I know this is an old post but I thought I'd give my opinion
I had the red and black 2 piece case for about a week, and really disliked mainley because it made the phone feel cheap I could feel movement in the case like loseness .. not a good feeling..... Anyways went to verizon , brought the case back no reciept and no box, NO PROBLEM they exchanged it for me and I got the body glove. This case is amazing make the phone feel industructable and solid something it laked nake or with the hardcase definetly recomend it cost me $23 with discount., Only gripe with the body glove is I have a hard time hitting "P" (betterkeyboard w/ Iphone skin) but I love that it reseces the screen and camera lens.
I also have some expierence with the silicon black case from Verizon it's great as well give the phone a fantastic feel, makes the phone feel solid and still very thin. My only problem is I don't feel like it really gives much protection to the phone except from scratches a light falls.
All in all the silicon case makes the phone feel much better offering a little protection the hard case IMO makes the phone feel and look very cheap and the body case is like have a bullet proof vest on but kinda bulky