I switch around a bit but I've got a Easton Z-bubble shaft fitted with a NBH-blade, but every now and then I'll switch to a cut-off Synergy also with a NBH blade and my third choice would have to be a mid level NBH one piece which I bought as a backup.
It really doesn't make much of a difference to me, but since NBH is the only brand (hat I've found) who keep their p106 curve that's what I go for.