Watershield, hands down. Although the new silver hub-printables are VERY sexy. I buy only TY unless something else is on sale at 1/2 the price.
There have been complaints of smearing, but the same complaints have been made on virtually ALL printable media and I suspect it has more to do with some of the Epson inks and print settings. My Watershields come out of the printer dry and smear-proof immediately, just a little tacky. After a few min, they are very dry.
Any glossy surface is subject to “Scuffing” from things like paper towels, even glossy photo paper will do this. Lets not forget we are dealing with a printable surface. If it was bullet-proof, you couldn’t print on it.