It would seem anything with oil in it would be less desirable, as the oil will go rancid.

Grape nuts aren't too bad served hot.

Perhaps one thing I like so much about Grape nuts is they take longer to eat per unit weight than other cereals. All that chewing makes my jaw feel like I am eating a bigger meal. That seems to help satisfy the appetite a bit more.

For short term storage, granola is pretty good stuff. It can have the same appetite satisfying effect as Grape Nuts.

Cap'n Crunch tears up my mouth too much. Tastes great, but then all I taste is blood after.