You are going to get a lot of opinions to this question. I suggest WMS Deer Magnate or WMS Ala. Blend or Buck Busters. All will do the job, just not the cheapest.
I am planting a wheat, oats, rye and winter peas mix, and then coming back in and adding brassica's and clover. Going to toss in some extra radish and some forage collards this year and see what they do.