Since no one is talking about this yet, I guess I'll have to be the one to get it started. I just had the burger at Blue Goose -- based out of a repurposed shipping container at Harbourfront Centre -- and it is quite possibly the best hamburger I've ever had in my entire life. And I don't make that claim lightly.
I don't normally link to my blog here, because I don't want to be that guy, but I just wrote the place up and it seems apropos:
The Coles Notes version: it's an absolutely outstanding griddled hamburger. Juicy, beefy, and amazing. I'm still kind of in shock over how good it was, honestly. If you like burgers at all it is a must.