Such a dilemma (ha) - one location of both of these sandwich chains has opened within 1/4 mile of my home in Houston. Since I work from home most days, I'm always looking for nearby lunch options. Which do you prefer, and why? The concepts seem awfully similar... handmade crusty sandwiches. Which Wich has an ordering concept VERY similar to a local chain (Brown Bag Deli) where you write your order on your sack and all sandwiches are the same price. Potbelly has been open a little longer and has lines out the door (maybe that should tell me something). Anyway, I'm interested in your opinions before I take the plunge. Thanks!!