What chain (yawn)?

I've bought a couple of YBN chains recently but can't really see past Shimano. Could be pure coincidence but it's the Shimano chains on various bikes which seem to last longest (and hold wax better if you're in to hot waxing).

XT/Ultegra level for me in future, might even treat the good road bike to Dura Ace as it'll probably last ten years on summer mileage only 😂

Have a look at zero Friction cycling. Numerous 11 speed chains tested there. You can choose either the longest last, the most efficient or the cheapest per mile.