There's a lot of burger places in Toronto and for the most part, I find them underwhelming - either patty's are too small or they're too greasy. I like GBK (Jones & Gerrard) because they're a decent size and light on the grease... probably because, I think, they cook on a grill rather than a fry top.
The selection is ok but I'd like to see some new additions to the menu. I always get the Riverdale and my wife, the Classic.
I can't complain about the price as it seems inline with other places but still, two burgers and fries at around $25 is a lot.