I've never had problems with ngk's, and I've used them on MANY platforms. Shane is right on the magnacores having issues with other ignition components as well as 'sucking' at times due to quality control issues of past, I hope

. I've heard nothing but good things about the taylors.
And for chris:
Those damm oem ones seem to last a long time, as long as the car is near stock, they usually work just fine for years and years.