Gear Drive for Electric Skateboard, which one is the best?

Wow, so many brands are switching to gear drive, it sounds interesting. But I really want to know which one is the best? :thinking: Meepo Gear Drive,many people praise it, but it looks plastic and I doubt if it is solid. Exway also release gear drive, but I do not see any review on it. How about this one? Eovan Gear Drive looks nice, but they show so small information and I wasn’t 100% convinced.

I want to know this also.