I just noticed that Delta is offering a "Business" class award ticket from JFK to CDG on an AF flight that I was about to purchase "Premium Voyageur" tickets on. My question is, when they say "Business" class are they referring to AF "Premium Voyageur" or "Affaires"? If it's the latter, it makes sense for me to use my miles on the award, otherwise it would be cheaper to buy the "Premium Voyageur" tickets outright.