To answer your question there is NO COMPARISON it is like Oranges and Apples. Eating from a paper wrapper or Eating on a Porcelain plate, having someone bring you your food and refill your drinks this place is more like a TS than a CS,although both may good there is just no comparison and you can check out the menus, sandwiches are great but at Wolfgang Puck Express Market Place you can get Rosemary Chicken, Salads, Pizza, Pastas, French Toast, Breakfast Pizza, Omletts,Organic Tea, Frozen Yougart,Creme Brullee,OMG the list goes on, so if I was on the dinner plan and had one CS credit left and wanted to maximize it and make sure that everyone in my party was happy then you MUST GO 2 WPE and pay oop for EOS
Wolfgang Express is in the Market Place it is on the dinner plan
the other Express is on the Westside and is not on the dinner plan according to official disney site some have said that they have used a CS credit there but I can only go on the Disney site and what a CM said
and then there is Wolfgang Puck Cafe also on in the Westside it is a TS on the dinner plan with a more formal Dinner Room Upstairs that is not on the dinner plan
the menus at all these places vary some have more than others but all the menus have something for everyone!!