You could stand on a corner and look around until a restaurant sign draws you in. But we've got a better idea. Each week, Lexington Patch picks a great restaurant, either in town or nearby, worth checking out. Here's this week's choice... and it's all about sandwiches for Super Bowl Sunday. Avenue Deli, 1806 Massachusetts Ave.: If you're trying to figure out what to serve hungry football fans on Sunday, go with crowd-pleasing sandwiches from this local deli. Located at 1806 Massachusetts Ave., Avenue Deli serves classics like ruebens, the turkey club and ham and cheese. But the menu has some …