Throne: Orr
Inner Sanctum: Bourque, Espo, Bucyk, Milt Schmidt, Eddie Shore, Frank Brimsek. Bergeron belongs here. I would put Chara as well. Marchand is 6th all time among Bruins for goals and 7th for points, so agree he will end up here.
Outer Sanctum: Neely, Middleton, Dit Clapper, Lionel Hitchman, Bobby Bauer, Woody Dumart, Ratelle, Park, O'Reilly, Cheevers. Pasta is currently here because of his 533 games. I would also add Krejci (6th in assists, 9th in points), Hodge (10th in points), Cooney Weiland, Cashman (9th in goals 8th in points), and Tiny Thompson. Rask and Tim Thomas belong here as well. One could argue for breaking this group further into 2 levels. And I honestly do not know exactly where to put the HoF'ers from the early years.
Honorable mention to Reggie Lemelin for breaking the Montreal curse in 1988 (you kind of had to be there to appreciate why this is a big deal).