Am sort of biased but UNSW. I don't really know anyone doing biotech but have a couple of mates doing medical science, medicinal chem etc. and another two who transferred from Uts&macquaire science subjects, and they say UNSW resources are great and better than whatever they had UTS/Macq. Also no offence intended, there's also a higher caliber of students at UNSW who'll probably do the course (main reason why mates transfered, got dogged in group assignments).
Currently some of buildings, especially the biomed ones are undergoing renovation