I'm a Ford guy, so Ford parts. Though your plugs should last to the 150k mark, wires too. Unless you've had oil/anti freeze burning, something to foul the plugs. Good mileage for a 99.
Preference in order...
Ford: Motorcraft, Autolite.
Chev: AC/Delco, Champion
Dodge: don't know don't care don't like.. LOL