As a daily visitor to the competition (SB) I tend to prefer the coffee from EB as it is somewhat less acidic and the food selection is far greater.
Depending on your arrival time the wait can be greater sometimes as they do offer a decent selection of made to order sandwiches.
Which is yet another reason to choose them over the competition.
Remember if you are simply getting a coffee you don't need to order and wait in the line as you can go directly to the registeer :)