I can't compare to the obvious rep gods here but here is my miniscule experience.
VSF 126610lv, bought m2m here, in person last year, had been serviced, regulated and water tested. Perfect, keeps time within 5 seconds a day. My boss has a real 116610ln and as normal 50+ y/o with normal eyesight, we agree, you cannot tell mine isn't gen or his isn't rep. Truly NWBIG.
VSF 126610ln, would be my daily wear but drops random 5-10 min when it feels like it, have never actually witnessed it so no idea if it stops for 5 mins or slows from a hour. Quality wise other than that to touch, again NWBIG. Probably just needs a service.
VSF 116613lb, perfect, obv plated and VSF plated at that so Saturday night posing, not a daily wearer.
Clean Pepsi GMT M2, crystal is poor and as I have 8.5" wrists have got cheap eBay links added, other than that, perfect.
Now sold 16610lv, Kermit, 18 y/o, still going strong.