I don't know anything about Bouvs, except that their hair looks intimidating. How often does it need to be cut? Does it get tangled easily?
Activities wise, mostly I'm looking for a hiking/snowshoeing/camping/kayaking companion. A dog that can handle itself outdoors in rugged terrain without picking up every leaf and bur on the trail, as well as in deep snow. We also take them to work sites, where we have logging equipment and other machinery going, so environmental soundness is big.
Other tasks include watchdog, farm chores if amenable (vermin killing, keeping pigs off during feeding), family holidays, and possibly searching for drops (deer/moose antlers dropped in December, usually buried under snow).
We're too far from clubs to do any dog sports, but I teach tricks, games, trial manners, etc.