The price between BF and Kansbol is negligible and I do prefer the ground spine of the Kansbol, provided the blade is pretty much identical. To me, the advantage of the BF is the cheap sheath which I actually prefer to the multimount system or the Mora 2000 style sheath (belt loop) of the Kansbol. However, the blade (including the spine) is most important and sheaths are easy to come by so I'll get the Kansbol.
We're pretty fortunate with Morakniv as both the Bushcraft handles and the Garberg/Kansbol polymide handles are very comfortable.