I think this is only as good as the corn, but all I've been doing is this:
Remove some, not all of the husks from the cobs.
Soak them in a bucket for about 1/2 hour or so.
Put them indirect on a hot bbq for about 15 - 20 minutes. I occasionally move and rotate them over the coals for a few minutes each.
Take them off and let them stand for a few minutes, then remove all of the husk and silk. It comes off easily, but be careful - they are hot.
I then put the naked cobs over the coals to get a little char mark here and there.
Best I've ever had.