While both are great sd knives, I would go with the 806. This is because it has the axis (I'm sure the chinook locks up strong too), but even more so because it's not such a pocketfull. To me, longer thinner knives are easier to tote, and, with the shape of the handle on the bm and the way it sits, it seems to welcome your hand into the pocket too. I also like how the handle on the afck adds a little extra to your reach. If those things aren't an issue to ya, get the one that feels better in your hand. -I don't personally own a chinook, but it's on my "near future" list.