On my hunting land it is about 80% hardwoods, and agricultural fields within a mile. The last two guts that I have opened up were acornsand persimmon seeds. I totally agree that acorns are more of a desireable food source than corn or soybeans, but between the squirrels and the deer they dont last long once on the ground.
It is not uncommon to see late in December the leaves turned upside down from deer digging to find the acorns, as a matter of fact that is how I killed my last buck. As far as a "staging" area, there are definately more scrapes and rubs within the hardwood than there are elsewhere on my property.
Maybe this could bebecause of this particular deer habitat, as I have hunted cutovers of pine that showed very different deer sign that Im used to.
To answer your question I believe that it is very environment specific. If acorns arent abundant in their immediate territory, they will travel to the ag fields to feed. If they have an abundance of oaks it will definately keep them around. My food plots are purposely right beside the treeline of oaks, so that the deer will have a smorgasborg of food at feeding time, and hopefully not devour the clover, chicory, alfalfa, and rape until the acorns are all gone!!!

VABowman...Get your boots on and get up here and see for yourself! I tried to PM you but your box is full!