First of all, a skin will not offer any impact protection at all. They are way too thin.
For the clearest possible skin you should go with static dry install front and back protectors. And clear vinyl sides. My current combo is as follows:
Power Support Front/back, lucky labs Spektra sides.
SGP offers a kit that includes vinyl sides and static front/back.
Don't go with the Wrapsol/Zagg/etc. wet installs. The wet screen protectors have an orange peel effect.