"It depends on various factors, including which country you are coming from, your skills and qualifications, and what kind of visa you seek.
Generally speaking, the UK is often seen as more welcoming to immigrants than Canada. The UK has a longstanding history of immigration and is home to a diverse range of cultures, whereas Canada has only been open to mass immigration in recent years. This means that the UK may be more likely to accept your application for citizenship or residency than Canada would be.
However, both countries have stringent requirements for applicants, and there is no guarantee that you will be approved for residency or citizenship regardless of which country you choose."