Champion H10C, or something different ?

[Kube]

Originally Posted by Mike51Merc

Just take a new H10 (you can find them in the lawnmower parts section of your local hardware store) and visually compare it to an Autolite 216 or an NGK B6L. There's a noticeable difference in quality. If you don't believe that looks count, then go ahead and run the H10s.

I am not defending one plug over another as I have never been privy to the respective company's certifications.
However, I do know I have NEVER had an issue with Champion plugs in any engine. And, apparently neither has anyone that has weighed in here thus far.
Still, in the interest of learning might you enlighten us as to how you are apparently able, by a visual inspection, to detect why the Champion plug is inferior to others?