The Coleman Classic 2-Burner Liquid Fuel Stove is really similar to the Dual Fuel 2-Burner Stove. We did a full review of the Dual Fuel 2-Burner. The only real differences are that the Classic only burns white gas while the Duel Fuel burns both white gas and unleaded gas, plus the fact that the Classic is $35 less expensive. That and the fact that the Classic's fuel tank is red and the Duel-Fuel's fuel tank is gray.
Do you need duel fuel or just white gas? While the option of two fuels is nice, we don't recommend cooking with unleaded gas unless you have to. It does not burn as cleanly as white gas. Yes it is less expensive, but if you are really wanting to save money, we would go with a propane stove attached to a 5-gallon propane tank. (Read more about this in our Camping Stove Buying Advice). So we recommend the Classic if you really want to burn liquid gas. That said, we really recommend propane stoves for most applications. The one application that a liquid fuel stove excels in is at high altitude or extreme cold.