The whisperlite is a great product that I would point everyone towards. Its not the lightest but the little extra weight makes it sturdy and not feel cheap like some of the others. Sure it could pack down a little smaller but what in your pack couldn't? It's very fuel efficient and easy to use, you will always bring more fuel then you need. The one thing I would watch out for is the plastic threads on the pump... be careful not to strip them when attaching the pump to the fuel can.