Well... Without being too patriotic here.. I have to say the best all purpose (excluding combat) knife would be mod
F1 from Fallkniven, and the best blade I've wielded in "combat" is also Fallknivens mod
A1. I have the A1 but unfortunently lost my F1 a while back during a hike
The are both made of laminated VG10 steel, hard to sharpen but has unprecedented strength and endurance.
If my memory serves me right one of the special forces in the US use one of their knives aswell, as their basic allround (including combat) knives. Though i forgot which one.
btw. dont worry about the links they are in English.