I can't stand Subway. Even if it's one of the better options on tour, I still don't eat there. The "Subway smell" disgusts me.
Also, I'm from the Delaware/Pennsylvania area, so I don't have to resort to the Subway crap. Basically what Professor said, Subway is horrible, and I'm sure you can get better sandwiches in Chicago, KG, shame on you. Wawa is way better than Subway, but it's still not close to Capriotti's.
http://www.capriottis.com/
Eat it, live it, love it. They even have some locations out West in CA/NV/NM now, but god the stuff is good.
Also..
http://casapullashockessin.com/
Right down the way, very good.
Sorry if I'm a Sub Snob, but Subway is bad, bad, bad. Ideal sub is a homemade turkey from Capriotti's, no onions, with lettuce, tomato, pickles, hot peppers, and oil, never mayo. Perfection