Good question! I find that the selection of Chips, Nips and Via are the perfect blend of choices and that people are equally passionate about their selection when they choose one of the three. (and a reasonable weight to carry) Having said that, the chips usually run about 50%, while the Nips are about 35% and the Via about 15%. The coffee is more popular in the morning as you might guess, and the chips are most popular in the afternoon. The Nip flavors I take are Butter Rum, Chocolate Parfait, and Coffee. About 90% of the people take a mix (that I call the "variety pack") with the other 10% asking for a preference of a flavor. (I always offer 3 nips as the choice)
Mike