Turk Broda's All-Star record:
1st Team All Star (1941, 1948)
2nd Team All Star (1942)
"3rd Team All Star" (1943, 1947, 1949, 1950)
3rd Team AS is based off the same voting that gives the official 1st and 2nd Teams.
Turk Broda Pros:
Excellent longevity. In 1949, he was the oldest player in the NHL. He then played 2 more seasons, including being a key part to the 1951 Cup win.
Broda regular season = 629 GP. 304W - 222L - 102T
Durnan regular season = 383 GP. 208W - 112L - 62T
Broda playoffs = 101 GP. 60W - 39L
Durnan playoffs = 45 GP. 27W - 18L
Playoffs. Broda led the playoffs in GAA 4 straight years from 1948-1951 at the ages of 33-36. 4 Cups in 5 years, 5 Cups overall, seems to have been a big part of those Cups. Retroactive Conn Smythe in 1949. Not just a late bloomer, as he was highly praised for his age 23 playoffs in 1938, as well.
Broda regular season GAA = 2.53. Playoff GAA = 1.98
Durnan regular season GAA = 2.36. Playoff GAA = 2.07
Durability. From Broda's 2nd NHL season in 1937-38 at the age of 23, until 1949-50 at the age of 35, Broda only missed 3 total games that weren't related to the World War 2! And 2 of those were in 1949-50 when he was apparently being punished for being overweight.
Consistently good in the regular season. From 1940-41 to 1949-50, Broda finished top 3 in All Star voting every season, except for the 3 he missed all or most of due to World War 2.
Turk Broda Cons
Regular season peak. The All Star voting and opinions given in newspaper articles agree that he was a little behind Frank Brimsek and Bill Durnan in the regular season when their careers overlapped. Broda was a First Team All Star twice when he led the league in GAA. Other than those two years, he was always behind Brimsek and Durnan in All Star voting (but always ahead of everyone else).
Durnan's All-Star record is obviously much better, though the waters are muddied by 1) the 1st Team AS always going to the GAA leader; 2) Durnan winning the 1st Team in 1944, 1945, and 1946 over essentially zero competition due to WW2 (Brimsek missed 1/4 of 1946 and Broda and Mowers missed most of the season).
Bill Durnan All Star record:
1st Team All Star (1944, 1945, 1946, 1947, 1949, 1950)
3rd Team All Star (1948)
Even with the two caveats above, it's still clear based on contemporary articles and otherwise that Durnan was a better regular season goalie when he was on the ice, albeit for a significantly shorter time than Broda's career.
Doesn't seem to have been considered "the best in the NHL" at any given time like contemporaries Brimsek and Durnan were. Praise for Broda from contemporaries seems to be of the "best playoff goalie" variety but not "best goalie (period)."
___________________
My take: In the goalies project, I decided that I slightly prefer Broda's long consistent regular season prime and excellent playoff resume over Durnan's shorter, higher prime ,combined with a hit-or-miss playoff resume. I'm open to having my opinion changed, but so far, it hasn't. But it's awfully close and I wouldn't fault anyone for voting them in the opposite order.