The MSR Alpine cookset with a Whisperlite or Dragonfly stuck inside is a good setup if you like cooking with white gas. Leave one of the two pots at home if you want to save weight, both pots if you want to cook fancy meals. White gas is cheap here in the US, and if the stove is running properly it puts out a lot of heat. MSR sells three different size fuel bottles, so you can choose your bottle size according to trip length or group size. I wrap the windscreen around the fuel bottle. I use an Alpine cookset with a heat exchanger and a Dragonfly for backpacking trips where I expect overnight temps to drop close to or below freezing, it's a good cold weather setup.

Trangias are nice and simple to use, and alcohol is easier to find than white gas in a lot of countries. It's expensive in the US, though, and it takes more alcohol to cook a meal than white gas, so your fuel cost will be distinctly higher. Alcohol doesn't contain as much thermal energy as white gas, so boiling times are longer and you need to bring more fuel for a trip.

Snow Peak makes a really nice, compact, lightweight gas cartridge stove called the GigaPower. They also make really nice nesting titanium pots and titanium tableware. You can store their double wall titanium mug, a GigaPower stove, and maybe a small gas cartridge in the smallest cookpot. My objection to gas cartridges is that you can't always find the right style to fit your stove, and I don't like throwing away all those disposable cartridges. Snow Peak does make really nice stuff though, light weight and well thought out (but not cheap). http://www.snowpeak.com/cookware.html