Denso or NGK is the way to go for Honda/Acura. Unless it's a newer car that came with, and is designed for, something special (iridium, platinum), there's no reason to get anything but the cheap copper core.
Other brands and types work, but you'll most likely notice a slight decrease in power/mpg if anything, and w/ NGK and Denso (also Bosch but don't work as well) you don't need to worry about the plugs seizing up in the head, w/out the use of anti-seize, b/c of a coating on the threads.
Last edited by A-series; Nov 27, 2008 at 12:48 AM.