Strangely with Canada, I think it depends on where within the country you immigrate to. As a native Canadian from the prairies who moved to Montreal 10 years ago, I have met and worked with so many immigrants here that I now believe I know more of them in Montreal than I do native Canadians. It makes for an extremely interesting cultural mix.

Apparently Quebec makes it much easier for citizens from a select list of countries to obtain permanent residency, as opposed to what you'll find elsewhere in the country. It still takes a long time dealing with loads of bureaucracy (especially the requirement for basic French language skills which can be handled via courses while here), but I haven't yet met anyone who has had to leave before they manage to obtain their permanent residency.

Random aside: Moldova has proven to be the source of my favourite people. There are so many Moldovans here due to a simplified immigration process for their country. There's just something so refreshing about how they carry themselves: friendly, humble, utterly proud and self-confident, and without ego. It's nice to meet people who are pleasant without plastering a fake-ass smile on their face all day long. When you see them smile or hear a laugh, you know it's genuine!

tldr; I believe Quebec is conditionally easier (based on country of origin) to immigrate to than other Canadian provinces. And, um, Moldovans are genuine people - more of you need to move here so I can eventually find a lifelong mate. :p