BOSCH
The ones that came with the car! these are very good quality metal frames, and the refils are high quality, and the process is wasteless, except the rubber blade itself.
But they are a bit of a pain to change, if you haven't done them, and be certain to get the metal bias strips to curve the other way from the windshield, so the highest pressure is in the middle of the glass. For some reason, even the factory and the dealers get this wrong some times. when the blade is lifted from the glass, the blade should bow out!
Now why VW charges $10 (was $13) for a pair of refils is another story, and an indication that VW has no regrets to price gouge on parts. They don't even sell the right size, you have to cut them down (don't cut the wrong end).
But they are good.