Jeez those are nearly as bad as I've ever seen. You have a "waste spark" ignition system which is fairly fussy about what plugs it will run well on.
Here are three good spark plugs that work well with waste-spark systems. Good for 100k miles, the Autolite APP-985 (not the AP-985!!) and Champion 7412. Both of those are double-tipped platinum which just means the platinum coating is on both sides of the gap. Good for 200K+ miles is the Autolite XP-985 which is an iridium plug. All three plugs use what's called fine-wire technology which means they will fire more reliably in tough combustion situations. You can't go wrong with any of those three.