This is like the oil debate. Valvoline, Mobil, QS, etc. I've run Champions in my Mopar for decades, zero issues. I've known guys to run just a regular copper core champion in 9 second cars without issue.
I agree The Autolite and Champion are,at all major parts places for cheap. So it is whatever they have in the application you need. NGK cost more but are,easy to read.
I bought a close out on Champion at a buck each. So Champion it is.
Same goes for oil filters i still have 80-90 left. All were made by WIX. Some say Wix some are privately labeled. I have the common short, med and long (long is same as PH8A)
Fits 1957 Mopar up till don't fit. Lots of FORD'S and Chevy paid 80 cents to a buck each.
Also hope oil stays good because still have some i bought same time it was $0.49 to $0.59 a quart when Car Quest was bought by Advanced.