NGK are stock and considered to be the best by most honda dorks...
bosch platinum are good but don't have the spark capabilities of an all copper plug however they last WAY longer... don't get the plus 4's because as far as I have experienced they have too many paths for the spark to take and hence they do not spark well causing fouling and early replacement... if you have some sort of aftermarket ignition (msd) maybe you can produce enough spark but the stock honda system won't work well with them.
Champion is an oldy and cheapy but the plugs work well. they just need to be replaced much more often.
Your best bet is to stay with ngk.
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