From what I know there are three joint JD/LLB programs, Osgoode/NYU, Ottawa/Michigan State and Windsor/Detriot Mercy, there might be another but I do not know.
The only one from the JD standpoint that will have any real pull on a national scope in the states is NYU, which is a Top 5 Tier 1 law school. You will have a shot at Biglaw in major markets if that is what you desire, which in NYC means a starting salary for a first year associate of $160,000.
Michigan State and Detroit Mercy fall into the Tier 3 and 4 categories respectively, which is not to take anything away from them but you will be in a totally different league when it comes to recruting time. Don't expect
From the Canadian standpoint Osgoode is a top flight school, it sees its students go to prestige law firms on both sides of the border each year. Ottawa is pretty good, it ranks about in the middle while Windsor is towards the bottom, but you also have to remember is Canada only has 16 common law schools. Just some info for anyone that wants it.