If you're going to lease it, it may be worth it to not even bother doing anything to the taillights. But if you must, vinyl is a good option as it is not permanent. The only downside is the longevity vinyl lacks. I, too, am not a fan of the '14 tails although I do believe they work pretty well with Knight Armor Pearl.
I prefer the red and white tails and will eventually swap them with my '14 ones once I find a used set in mint condition and reasonably priced. They should be a direct pnp since Sewell sells the '14 tails as an 'upgrade' for the previous years.