I had a Capsule Rebel but was disappointed at how easily and quickly the plastic on the back got scratched up. I now have the InCase Slider and it's much better.
I've had a Contour Flick, Incase Slider Black Matte, Griffin Elan Form, Incipio Dermashot, and now a Capsule Neo. My vote for best case for looks and protection is the Capsule Neo.