Preferred anti-seize compound for spark plugs?

[robkay]

Don't know if this answers your question, but here they are. I didn't expect them to be NGK's. I bought the car new and was expecting Denso's which is what I replaced them with. I would have used NGK had I known that was what they put in. I've used NGK in other cars. Probably doesn't matter much, though. See, the thing is, this is the first time I've ever dealt with iridium plugs, so I don't really know what looks bad. There seems to be some carbon build up on the curved part, so that certainly isn't helpful.