What makes a great waiter? At a restaurant like the Fed, it's one who is friendly but not intrusive, informative but not obsequious. Mark Edwards has these admirable qualities and more, which is why he's not just the best waiter at the Federalist: He's the best waiter in Boston. With his easy smile and gracious hospitality, the dapper Edwards guides the diners at his tables through their meals, from the moment their napkins are placed in their laps to the last sip of coffee and the final nibble of crème brulée. In a town where service can so often go wrong, it's refreshing to find a place where it's so right.