I'm on my 4th windshield (Arizona is brutal!). First 2 replacements were OEM. I don't know how much the glass dude charged my insurance company, but they had to approve the "extra" expense of OEM. The last time I said screw it, just use the Pilkington glass - it's EXACTLY the same, including the markings, except for the lack of the VW logo above the Pilkington info. Again I don't know what the cost difference was, but no approval was required from insurance.
Fuyao is a huge company and BMW uses them for some of their glass, but it's a Chinese company and the glass guy warned me that there are aftermarket windshields out there for the Golf that don't fit well - something about the curvature not being exactly right. So Pilkington OEM seemed like a good choice.
Whatever you do, don't let the butchers from Safelite near it. Yeah they have some very competent techs that give a shit, but they have a lot more that are poorly trained and don't care at all about the quality of their work. I've experienced it firsthand as have a couple of friends. Never again. Find a competent indy local guy that comes highly recommended. Good luck!