I have not tried any of the other offerings, but I do know that their
Chili is great!*

I've had it 3 times in the past month, and each time it was a little different, but just as good. They usually also have one or two soups, as well as meatballs (in tomato sauce) or "Walters" (market) beans. Also saw some type of kielbasa concoction one day that looked pretty inviting. Next time maybe.
* Some time back, I started a thread asking for chili suggestions. I got plenty, but most were inside sit-down restaurants, and I was really looking for good chili in places I could
run in and out of quickly (like mom n pop grocery stores). After about a year of searching,
Winnisquam Market and Deli is now #2 on my list, right behind the chili at Dos Amigos (Mexican, in Concord) and right above #3, the Chase Street Market and/or Biederman's downstairs deli in Plymouth.