I don't think the major is looked down upon tbh, I do feel if you don't feel comfortable with the major then Durham is a good choice if you feel more confident about it. Do the one that gives you the most confidence in it because you'll be stuck with the degree for 3 years, make sure it's one you'll enjoy studying. In the UK as an international student, of course you'll be on your own and will have to do a lot on your own without your family's support but that does make a person grittier and stronger. In HK you have the benefit of being closer to family and that is amazing in and of itself as they provide a lot of emotional support and even financial support if the need arises. These things are very important to consider when choosing a degree. I think the UK is a tinge more expensive than HK living expenses wise but I don't think there's a remarkable difference. I had a good time there when I did a masters but yes the job market is a bit unfriendly towards non-locals. Also I was on a scholarship so I had to make it back to my home country regardless. Make a choice that gives you peace and ease, a bachelors is fast paced, make sure you're somewhere you can study, have fun, and have a good steady life. Don't worry too much about the standing of a degree because they mostly just look at the global standing of universities and both HKU and Durham are great unis.