Food Burger boom Rating Boston’s newest burger joints ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page ESSDRAS M SUAREZ/GLOBE STAFF Defining Boston’s best burger is bound to be a highly individualized pursuit, and with three promising new entries on the task only gets more difficult. Pictured, Shake Shack. WENDY MAEDA/GLOBE STAFF The line at the Danny-Meyer-helmed New York import Shake Shack on March 20, the day it opened in Chestnut Hill. ESSDRAS M SUAREZ/GLOBE STAFF The fast-spreading Washington, D.C.-based franchise Five Guys’ bacon-cheeseburger “all the way” and a side of fries. ESSDRAS M SUAREZ/GLOBE STAFF Four guys at the Five Guys at Downtown Crossing. ESSDRAS M SUAREZ/GLOBE STAFF The assembly line at the local burger-done-good Tasty Burger on L Street in South Boston.