Best Pork Chop Sandwich is Jim's South of Roosevelt just past the on-ramp to the Ryan.
There are 2 places next to each other. Both are good. My fave is Jim's. The other is called Express.
They both started as street stands on the old Maxwell Street Market. They sat in the street for so many years that the City was required to set them up in nice new restaurants when the Maxwell Street Market was closed and the University of Illinois bought the land.
Try a pork chop with onions and mustard. Watch the bones. Fries come free. Get an ice cold can of pop with it. If the weather is nice you can stand at a table along the outside wall of the shop. Sport peppers are available for the more adventurous diners.
This is a great spot to take out of town guests. Friends of mine have talked about it for years after eating there.