Unova, of course i would love the region based on Canada
Then we would have a sports stadium with nothing but hockey, a Pokemon based off a maple leaf with some huge conspiracy behind it being a marijuana leaf, and 20 Pokemon that look like a moose. How about no.
Both Kanto and Johto were pretty weak. Hoenn get's some credit for finally adding some diversity to a region, but I think Sinnoh did it just a tad better, and then Unova 2 takes it another step further. If I had to rank them: