Double Platinum or Iridium Sparkplugs?

Is it worth double the price to get the Denso Iridium plugs or are the Double Platinum the way to go?

Vehicle info:
2001 Rodeo 6 Cyl/3.2L with 109k Miles

http://www.sparkplugs.com/results_app.asp?AAIA=1363272&mfid=3


I've been running the double platium in the above link for the past 4 months with no problems.

-Ryan

Platinum spark plugs do not work any better than regular plugs. The only advantage to the platinums is that they resist gap wear and deposit build-up much longer. There is a very thin coating of platinum on the center electrode, so be careful gaping them or you could scrape it right off with the feeler gauge, thus making them useless.