First is NGK. They not only make the OEM plugs for my Hemi, but they also supply the plugs for the 6.1 gen 3 Hemi engines.
I chose to install NGK 92145 LZFR5CI-11 Laser Iridium Spark Plug. Reasoning: 100k mile life expectancy, copper core, iridium inner and outer electrodes, platinum ground...