Dude....you asked what conducts best. We answered you.
Copper conducts best. All the rest wear better, but conduct a little less. Autolite is a great plug. Keep in mind there are only like 3 spark plug factories in the world. Period. Chances are one of them you don't like is who makes a plug that you do. A spark plug is a spark plug. All it can do is spark. The more exotic metals are for durability ONLY and have ZERO affect on performance. Even your beloved NGK.
