The Fallkniven F1 IS the bench mark by which many are measured and the design (the traditional swedish) upon which many other models are based! The Bombproof survival knife of both the Swedish Airforce and the US navy and Marine aircrews is now a firm favourite of many bushcraft instructors and the bearclaw team.
If (maybe one day I will) I were living in true wilderness, say alaska, then while the F1 would be my necker I'd also opt for a A2 - this is THE wilderness knife - big and strong yet comfortable and controllable in the hand - a excellent all rounder!!
Both the F1 and the A2 are available from both Survivall and soon also Bearclaw Bushcrafts trrading post.