In your case, Manchester is the better option for 3/4/5 years, content-wise and life-wise. Period.
Despite that, on my side, I am still thinking about whether I'll choose Manchester, because I have spoken to many current students, who have said that it is more theory focused, but if you are fine with searching for work experience/ engineering-related activities independently, then it should be fine.
Anyways, I hope to see you in Manchester, if we both choose UoM!