Umm, HKU is good university, but not as good as KCL, especially for your course. I also studied biomedical sciences, and it requires a lot of research and practicals, and that's why I recommend KCL, cuz they actually have a perfect lab. The choice is really up to you, but as people above and I said, KCL is better. btw, they offer a work placement as well, which will benefit you when you are looking for a job, or if you want to work at a researching organisation, you can choose to carry a research in your third year. I don't really see a benefit going to HKU rather than KCL apart from HKU being a bit cheaper by small amount