The best cookset is a single pot with a utensil. Currently I use a snowpeak titanium bowl with a lightmyfire titanium spork. The rule for me is, use the lightest pot that meets your needs, with the eating utensil of your choice.

Many times my scouts will bring a full mess kit. I usually advise against it, but I let them decide for themselves. The only thing that gets used is the pot. I also tell them to go to the thrift store and buy a fork or spoon. That way their mom doesn't get mad when they lose it (they always do).