There's another folding saw that, as far as cutting speed and effort, some think (including me) is in a league of its own. It's the Silky Pocketboy. It's available in both 5" and 7" versions and I use the 7" version. The bad news is that the Japanese made Silkys are more expensive than the Swedish made Laplanders.

Silky makes several different interchangeable blades for the Pocketboys. I use the course (large tooth) blade the most. That blade is optimised for cutting green wood but I found it is the best general purpose blade. When I'm backpacking, I generally carry two blades – the course general use blade and either the hard wood blade or the dry wood blade (depending on the conditions). My wife has her own 5" Pocketboy. It has a blade that Silky designed just for cutting bamboo and she uses it in our bamboo garden.