Will going to an university in UK be profitable for me in the future?
Personally, I think it is to early to think about graduate school if you haven't even started undergraduate. I would go with where you want to live, and where you think you will have the most research opportunities, and where you think you will get the best grades. Most of all, I would go where you think you will be happiest in life, and not academics. It is infinitely harder to do good work, no matter what field, when you are not happy.