Of what I've seen upto now bull x terriers try and fight it rather than work it and seem to take unesaseiry hits than a terrier what works the quarry smartley I perfere a dog what will work rather than fight,, more digs a season, a less marked up dog less money spent on vets less chance of losing him, and a longer life,, all with the same ending dig the dog dispatch the quarry, for me its a no brainer but evrybodys diffrent that's why there's so much beef on this site lol