Your asking questions where answers can be biased, with the whic uni is better.
About facilities, the main business campus is parramatta, but campbelltown and blacktown have equal facilites, and if you cant find a book at one campus, you can get it form another and theyll deliver it to you in a few days or so. Since lecturers may teach at a few or all campuses, thats irrelevant, and most of the lecturers are good. Sometimes, some units will vary within itself across teh campuses e.g. type and due date of assesments [rare].
Its up to you which campus you like, many like parra due to its view for the river, close to parra shops/malls, but if i could change, campbelltown is quite nice in itsself, and i dont knwo anything abotu blacktown to comment.
ACU, i do not know, you best be going to the open days in january to have a taste of the uni lifestyle at each uni.