I always find these discussions incredibly interesting, almost as interesting as the coop space/size discussions. What I can never understand is you have people that insist that the only thing animals can't get through is HWC, but then in the same sentence will tell you how they only use it on the first 2 feet of their run and then the rest is field fencing. I don't understand this, because we also warn everyone how predators can climb right up smooth panel walls with no problems, yet they can't climb above the 2 feet of HWC? Or we tell folks that you can't use chicken wire because predators can basically walk through it and you can't use field fencing because the holes in it are too big, yet if you cover those giant holes with the flimsy chicken wire, it works fine? The biggest secret that no one wants to admit is that the HWC you're probably buying, is the same gauge as the chicken wire, but is miraculously stronger?
Plenty of people use various fencing options and never lose a bird. Use what works for you and what you can afford.
Like I said, interesting topic.