Mcgill or Sheffield vs Leeds?

I have recently been accepted to Mcgill in Canada but also to the universities of Leeds, Sheffield, Cardiff and Manchester. For the UK I was hesitating between Leeds and Sheffield but I didn't expect to get accepted to Mcgill so now I'm reconsidering my choice. Having a French citizenship, I don't much problems with the costs of both UK and Mcgill university (Mcgill is in fact cheaper for me).

I was wondering if someone could tell me their opinion on that matter.

Should I give Mcgill a try?
I did visit the university last summer and the campus looked nice.

If you can't answer that, could someone tell me their opinion on Sheffield or Leeds? Which one do you think might be better? What is your experience?

Thank you