Corn fed whitetail beats any mule deer any time.
I would add that, IMO, whitetails that eat a lot of waste grain, corn/milo/soybeans, are better tasting and more tender, due to more marbling, than whitetails that browse twigs and other lower protein foods.
I used to hunt whitetails in the Flint Hills of eastern Kansas where there was a lot sage in the pastures. The meat from those deer gave off a distinctive odor when cooked and had a stronger flavor any other deer that I recall.
