if a network uses proof of work it should be asic resistant. no worry about specialized hardware being made by a small number of manufacturers. you can get the hardware at any computer parts store. I have heard the story about asic friendly proof of work enabling a network to become a load balancer for the electrical grid but I don't completely buy it, and it depends on the state cooperating. it's difficult to hide an asic farm. I feel safer under the assumption that the network can still be healthy just in case the state is hostile. you get that with asic resistant proof of work.

I still have reservations about proof of work. it's always going to have a geographic centralization pressure. people who live in places with expensive electricity can't participate in network consensus without stealing the electricity. I can't do mining at my house at all for instance. even heating my home with mining equipment still costs me more than other types of heat. 

on other consensus mechanisms all you need is a laptop with an SSD plugged in and some coins. that's very compelling and might very well be worth the tradeoffs under certain circumstances. at least I can participate.