You asked, so heres my thoughts.....
Run the OEM plugs. Mopar engineers spec'd them for a reason. Change them at the intervals set in the owners manual. Use the specified gap.
I have a 2007 Ram 1500 with the 5.7 mill. In some cases, the factory OR an aftermarket warranty outfit will scrutinize any nonstock part you put on the vehicle in the event of a failure. I had 2 lifters go bad at 57,000 miles and they picked me on the oil change records AND the FRAM filters that I used occasionaly. I now use Mopar or NAPA filters ! I use the Champion plugs for 3 reasons: They are OEM, they are cheaper than platinum and their longer life is a moot point. My 2007 requires new plugs at 30,000 miles. Remember to use a dab on anti-sieze compound on the threads!