I installed autolite double platinum. Be sure to gap your plugs before installation. The reason that I installed double platinum is because they are supposed to last longer. It is a good idea to add a little silicone dielectric grease to the inside of the spark plug boot. Most parts stores have silicone dielectric grease but it is expensive. The silicone dielectric grease keeps the rubber spark plug boot from sticking to the spark plug. It also keeps water from getting inside the spark plug boot and creating a short to ground.
