I've never had PB+honey, ever. I've tried the Elvis sandwich, it isn't bad. Plain PB is good as well (always crunchy, however). And Fluffernutter is also superfluous (though I prefer to have Nutella over Peanut Butter any day of the week).

I voted for PBJ, in either - PB+grape (classic), PB+strawberry, PB+orange_marmalade, or PB+blackberry (mmm, bitches!)