Blake's 3-year peak (1938-40) vs Iginla's 3-year peak (2002-04)
Blake 1938
Scoring
16th in scoring by raw points, would have been around 10th in a full season
11th in raw goals, would have been around 8th in a full season
Effectively 2nd on his team in scoring, behind Mantha
Playoffs
Good in the playoffs, leading his team in goal scoring and points (a 3-way tie). Habs were the first team upset by the historically crazy Cinderella run by the 1938 Hawks.
Nevertheless, he won 2AS. It should be said that it was one of those convoluted ballots where it's hard to understand what the voters intended. Paul Thompson was the clear-cut 1AS, while Blake emerged from a pile that included Lynn Patrick, Georges Mantha, Sweeney Schriner, and Busher Jackson. Schriner and especially
his teammate Mantha had better numbers, so it's worth looking into how Blake overtook them in the hearts of the voters.
Blake 1939
Scoring
1st in points
2nd in goals
7th in assists (one guy ahead of him was his teammate)
Led his team in goals and points, 2nd behind his center Paul Haynes in assists
Playoffs
Hard to judge. He had 1-1-2 in 3 games, in the context of his team only scoring 5 goals. In a matchup between two very bad teams, the Habs lost 1-0 in OT in the deciding 3rd game.
Leading the league in scoring for an awful Habs team, Blake won the Hart running away over Syl Apps and Johnny Gottselig. It was a weird year for Hart voting as the other contenders for the scoring title, Schriner and Bill Cowley, saw Hart support go to G and D teammates. The Rangers, who were one of only 2 teams over .500, did not place a player in the Hart top-5. The result was Apps and Gottselig, who finished relatively low in scoring on bad teams, being Hart finalists behind Blake. Again this may be worth a longer look, to see what the voters were thinking about. Blake was the overwhelming 1AS choice over Gottselig and Schriner.
Blake 1940
Scoring
7th in points
7th in goals
9th in assists
Led his team in all scoring categories, including large margins for G and P
Playoffs
Habs were unbelievably bad (10-33-5) and mercifully missed the playoffs
Blake's 1AS in this context is interesting. Again it comes down to convoluted balloting: Blake had 14 first-team votes and 7 second-team votes, while Woody Dumart had 13 first-team votes and 9 second-team votes. Meaning Dumart actually had more votes than Blake, but I assume Blake won on a point system. Bryan Hextall was the only other LW to get a first-place vote, so it was very much a 2-horse race that Blake won by a nose over Dumart. For his part, Dumart was a top-3 scorer on the league's dominant team. Implicitly, the voters must have felt that Dumart's statistical edge was an illusion created by team support.
Iginla 2002
Scoring
1st in points
1st in goals
18th in assists
Led his team in G and P by large margins, 2nd in assists to his center Craig Conroy
Playoffs/International
Flames finished 11th to miss the playoffs
Late addition to the Olympic team. Nothing noteworthy until the gold medal game, when he scored 2-1-3 including two late points to close out a 5-2 win.
Iginla famously lost the Hart in a tiebreaker to Jose Theodore, with Roy and Burke the next two vote-getters. I don't know what to make of the goalies rating so highly that year, other than that Iginla was practically the only player to put up normal-looking offensive numbers that year. Iginla was, notably, the consensus 1AS at RW with a 60-0-0 showing. Bill Guerin, Glen Murray, Pavol Demitra trailed distantly.
Iginla 2003
Scoring
34th in raw points, would have finished about 25th on a full schedule
17th in raw goals, would have finished 7th on a full schedule
Despite missing some games, led his team in G and P, again finished behind only Conroy in assists
Playoffs
Flames finished last in their division and didn't come close to the playoffs
Iginla received no award recognition this year. Everyone who got a vote (with the exception of one 3rd place for Lehtinen) finished with better statistical numbers, so that's understandable, but it's a remarkably stark contrast from the prior season. Especially going from 60-0-0 to 0-0-0. He only missed 7 games so it's not like injuries were the only issue.
Iginla 2004
Scoring
t-1st in goals, lost the race on a GP tiebreaker to Rick Nash (81 games to 80)
18th in points
As before, led the Flames in G and P (now by disgusting margins) and was behind only Conroy in assists
Playoffs/International
Extremely strong playoffs, leading the team in scoring in the context of a 7-seed making a Finals Game 7 run
Alternate captain for Canada's World Cup team. 2-1-3 was disappointing considering he skated with Lemieux and Sakic on a gold-medal winning team, and all the points came in a 5-0 win over Slovakia.
Notably, the Flames captaincy was moved from Conroy (who did not leave the team) to Iginla prior to this season. Iginla finished a distant 2nd in Hart voting to Martin St. Louis, and was again in close company with goalies as Brodeur and his teammate Kiprusoff finished 3rd and 4th. He also finished 2nd to St. Louis in RW voting, decisively ahead of Hossa and Alfredsson.
Summary:
I think Blake's award voting in each of these seasons warrants a closer look. In my opinion there is real ambiguity about what each of them means. His 1938 AS finish is peculiar in context of his teammate Mantha, his 1939 Hart finish involved an unusual set of finalists, and his 1940 AS was by the slimmest margin imaginable over Dumart.
In contrast, it's pretty obvious that Iginla was regarded as either the 1st or 2nd best winger in hockey in 2002 and 2004, and was at least in the conversation as best overall player. That seems clear-cut. 2003 was a much weaker year, which probably warrants a closer look.
In my opinion, Iginla's peak is clearly higher than Blake's unless I have missed something pretty important about these seasons.