According to Mingyuan's introduction to studying abroad, the two schools have different degrees of completion. University College London is UCL, a world-renowned school and G5 school in England. It is a prestigious school that students dream of. University Town of London was only merged into University College of London last year. Many domestic intermediaries and students of this school confuse London Metropolitan University. When applying, you need to check the English name of the school.
City University of London is famous for Cass Business School.
These two schools have their own strengths, depending on what major you want to study. If admission is difficult, UCL is definitely higher than city university, but if it is business, some majors have higher requirements for Cass.