What brand of spark plugs have you had luck with

I like Denso (Nippondenso) U-groove, this is their cross: W14PR-U, 14 is a Champion 14-16 heat range. Finish quality is amazing. Exotics are really for EFI, waste of money on coil/carb applications IMHO.
Do you know of they make 10-12 heat range in denso's?