Which solar panels have better quality?

[mightyduck21]

Have you ever witnessed your LONGi solar panels accommodates raindrops or snow on such weathers? I find it odd and a bit alarming that they do considering it's process on how to acquire energy. They do not however, occur on other Solar panels such as Jinko and CSI and I think they shed snow and droplets better. According to this website, hydrophilic PV glasses are equipped with anti-fogging elements. Does anybody know where I can purchase solar panels with hydrophilic PV glasses installed? Or which brands offer such solar panels?
Thank you!