Default Which Clear Case is better?

I really want a case that can still show the great design this phone has, while providing some protection, and I believe many of you will as well. I also ordered a Glass Screen Protector from Aliexpress to go along.

This are my findings:

Spigen Case Ultra Fit Capsule (TPU)
http://www.spigen.com/htc-one-m8-cas...t-capsule.html

Case-Mate BARELY THERE (Hard Plastic)
http://www.case-mate.com/htc-one-m8-...there-case.asp

Case-Mate NAKED TOUGH (Hard Plastic + TPU bumper)
http://www.case-mate.com/htc-one-m8-...ough-case.asp#

Exact Prism Series Slim-Fit Transparent Case (TPU)
http://www.amazon.com/Exact-Prism-Se.../dp/B00JAR24SU

KAYSCASE Slim Hard Shell Cover (TPU)
http://www.amazon.com/gp/product/B00...0-20&m1k=vb_ac

Do you have any of these? Which one would you recommend and why? Itīs very difficult to make a decision based on the videos out there, which are normaly only unpackaging...

Cheers