No chicken will fare well next to large predators, though I think the question was more about whether some might have a better chance than others... I feel your pain with regards to dogs... Have an unneuterd male put bull "free ranging" next door and on my property. Haven't lost anyone yet, but only due to my poor chickies being much more confined than I/they would like (and a bit of luck)... I am with old gray mare in that the dog situation needs to be dealt with, but that is easier said than done sometimes depending on leash laws etc. We have had animal control involved/talked to neighbors etc. Though I am not a violent person, it has come down to (and the neighbor has been warned) if anyone on my property is threatened, chickens, kids, my dogs etc., we will protect our property with whatever force is necessary. I will feel badly if it comes down to it, because it is not the dogs fault, just bad owners, but our lives (kids, chicken, dogs) are my first responsibility.