I don't know what to say that hasn't already been said, but felt like I wanted to contribute to their amazing Yelp score. My two favourite sandwiches in the city are the pulled pork from Black Camel and porchetta from Porchetta & Co. I know, I'm not really charting any new territory with those choices but, hey, it is what it is.
Black Camel's thing is their sauce though -- it's delicious. If you're looking for a sandwich that will quite possibly leave you in a food coma for several hours, get the pulled pork at Black Camel.