I would guess wheat berries. If you keep them dry and the bugs away they should last longer than any of us will be around. Most of the grains and legumes will last extremely well as long as they stay dry and bug free.

An Army Colonel at his retirement party opened a C-Ration pound cake he has been carrying with him since 1973. The C-Rat was made in 1969.

C-Rat pound cake

No matter what the expected shelf life, I'd have been a little hesitant about eating that,

I read in Nat. Geo. magazine years ago that archaeologists in Egypt found wheat and grains in mummy tombs which was still good, even sprouted. It was several thousand years old.
Salt and honey will never decay or "go bad", unless contaminated by some outside source.

Ditto honey not going "bad" just dehydrating.

Personally, something like rutabaga or asparagus, since I don't like to eat them. In fact, I might starve to death first.