I think ordering a tuna sub is always going to be a bit of a risk. Will the fish taste fresh enough? Will the mayo be slapped on too heavily? Will the whole sandwich be a mess? However ...

three tuna sandwiches from jimmy johns, jersey mike's and subway ...

I tried classic tuna sandwiches at Subway, Jimmy John's, and Jersey Mike's to find the best one. Subway and Jersey Mike's both had OK offerings, but there were problems with both. Jimmy John's ...