NGK {I got them free for years, fro Vic Hubbards}
& Champions Race Plugs from ERC another sponsor,
I used Autolites too, mostly in racing & haven't really had any issues with any of them...
Biggest problem is people getting the wrong style plug or wrong heat range,
resister style plug when then don't need it in a racecar etc., really not the wrong mnfgr...
A lot of hubbub over advertising...
I have a buddy that works at Chevron research facility in Richmond {also a big time racer}
testing stuff like this, all the time, from his testing he claimed the best overall for everyday use & longevity
was the NGK platinum, with extended tips...
But he also said there's very little difference between brands...
He also said when he tested the E-3's they did well for bottom end, but that's pretty much nominal #'s overall...
I actually have a set of Accel's shorty's in my current RR with alum angle plug heads
& so far so good, no complaints
I had E-3's in my old Dakota R/T, I wanted to try them,
actually it cleaned up the idle HC's a bit, other wise no issues either...
Plug choice & peoples personal opinions are like ( ! ), well you know, everyone has one....