Just curious as to what everyone runs in their vehicles and why. I personally have two top choices for my car...The AC Delco Rapidfire and the NGK V-power. I can't really say that one is a whole lot better than the other, especially in terms of performance since that part seems to be about equal. I do like the NGK for their somewhat cool-ish heat range for my application which seems to quell a little of the Knock Retard when flogging it in the hot summer months. The Rapidfires work great too, and they sold me after installing a set in my 17HP Kohler twin garden tractor engine...It was the only plug that didn't foul out horribly after one season, or at best become "2-sided" with the intake side clean and the exhaust side all black. Of course this was with the old style Rapidfire (P/N 2 same as a Chevy V8). I can't say whether or not the new platinum version will work as good. These have been fine and there's no reason to change them yet. I of course use nothing but Champion in any Mopar...They don't seem to run right on any other brand of plug, so my dad's Dakota and mom's Jeep get Champion Truck Plugs. I tend not to use Champions in any other application, especially Fords...They get Autolite or NGK. I will never, ever use a Bosch Platinum plug. The failure rate of these plugs is exponential. Nearly every vehicle that comes into our shop with a misfire and/or driveability concern has these POS plugs in it. They've also been responsible for at least one case of piston meltdown in a (modded) supercharged 3800 V6.