Which Spark Plugs are the best?

As long as they're iridium does it matter what brand? I was thinking about changing to the NGK laser iridium long life spark plugs. Has anyone had any good/bad experience with any spark plugs? I have an 02 with a 3.4

My car likes NGK Iridium plugs!

But stay away form Bosch, they are garbage. I use to use them, but the Pontiac did not like them. I wasted so much time and money, that is what I get for listening to the parts store ideas. That was before I found the best forums on the net which is here!!!

I would use either NGK or AC Delco

Thanks. I tried the Bosch Fusion awhile back and the car wouldn't run. I work at one of GM's engine plants and the a/c delco plugs have an NGK sticker on the box so I think NGK may make the plugs for GM.

NGK goes make delco plugs.

Any position openings at the GM plant?

GM has 1000's of people on layoff right now. They are adding jobs in multiple states but I think they will fill them with the people out on layoff. I think from this point on anyone who gets hired will make around $15 an hour. Anyway, I was thinking about switching the AC Delco plugs for the NGK TR55IX....