Not very as far as I can tell. I use EasyPrivacy + uBlock with a huge amount of wildcard rules - rules that did not work well with ABP (before uBlock came alon

Not very as far as I can tell. I use EasyPrivacy + uBlock with a huge amount of wildcard rules - rules that did not work well with ABP (before uBlock came along; ABP would choke and cause 10 second load times). People are basically being employed to arms-race any defenses, so you get that kind of development speed.