I have had less than stellar luck with Champions and Autolites. On 2 different occasions I put a new set of Autolites in a car I'd owned and the engine had a miss immediately afterward. Put the old plugs in and it cleared up.
I've never had bad luck with NGK's, in everything from race cars to lawn equipment.
'18 Ford Raptor, random motorcycles, 1968 Plymouth Fury III - 11.37 @ 118